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Finding the Fourth Proportional to 72,585.92, 108,938.93 and 37,073.50

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Solution

The fourth proportional to 72,585.92, 108,938.93 and 37,073.50 is: 55,640.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,585.92 : 108,938.93 = 37,073.50 : x
  2. Step 2: Convert to fraction form
    72,585.92/108,938.93 = 37,073.50/x
  3. Step 3: Cross multiply
    72,585.92x = 108,938.93 × 37,073.50
  4. Step 4: Simplify right side
    72,585.92x = 4,038,746,963.64
  5. Step 5: Solve for x
    x = 4,038,746,963.64/72,585.92
  6. Step 6: Final answer
    x = 55,640.91

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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.