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Finding the Fourth Proportional to 60,981.59, 91,472.39 and 40,200.23

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Solution

The fourth proportional to 60,981.59, 91,472.39 and 40,200.23 is: 60,300.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,981.59 : 91,472.39 = 40,200.23 : x
  2. Step 2: Convert to fraction form
    60,981.59/91,472.39 = 40,200.23/x
  3. Step 3: Cross multiply
    60,981.59x = 91,472.39 × 40,200.23
  4. Step 4: Simplify right side
    60,981.59x = 3,677,210,759.79
  5. Step 5: Solve for x
    x = 3,677,210,759.79/60,981.59
  6. Step 6: Final answer
    x = 60,300.35

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.