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Finding the Fourth Proportional to 60,981.96, 91,472.95 and 40,200.60

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Solution

The fourth proportional to 60,981.96, 91,472.95 and 40,200.60 is: 60,300.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,981.96 : 91,472.95 = 40,200.60 : x
  2. Step 2: Convert to fraction form
    60,981.96/91,472.95 = 40,200.60/x
  3. Step 3: Cross multiply
    60,981.96x = 91,472.95 × 40,200.60
  4. Step 4: Simplify right side
    60,981.96x = 3,677,267,473.77
  5. Step 5: Solve for x
    x = 3,677,267,473.77/60,981.96
  6. Step 6: Final answer
    x = 60,300.91

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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.