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Finding the Fourth Proportional to 91,736.30, 137,604.45 and 36,332.30

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Solution

The fourth proportional to 91,736.30, 137,604.45 and 36,332.30 is: 54,498.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,736.30 : 137,604.45 = 36,332.30 : x
  2. Step 2: Convert to fraction form
    91,736.30/137,604.45 = 36,332.30/x
  3. Step 3: Cross multiply
    91,736.30x = 137,604.45 × 36,332.30
  4. Step 4: Simplify right side
    91,736.30x = 4,999,486,158.74
  5. Step 5: Solve for x
    x = 4,999,486,158.74/91,736.30
  6. Step 6: Final answer
    x = 54,498.45

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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.