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Finding the Fourth Proportional to 91,374.50, 136,920.13 and 63,349.04

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Solution

The fourth proportional to 91,374.50, 136,920.13 and 63,349.04 is: 94,925.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,374.50 : 136,920.13 = 63,349.04 : x
  2. Step 2: Convert to fraction form
    91,374.50/136,920.13 = 63,349.04/x
  3. Step 3: Cross multiply
    91,374.50x = 136,920.13 × 63,349.04
  4. Step 4: Simplify right side
    91,374.50x = 8,673,757,949.20
  5. Step 5: Solve for x
    x = 8,673,757,949.20/91,374.50
  6. Step 6: Final answer
    x = 94,925.37

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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.