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Finding the Fourth Proportional to 73,963.29, 102,070.23 and 40,429.29

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Solution

The fourth proportional to 73,963.29, 102,070.23 and 40,429.29 is: 55,792.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,963.29 : 102,070.23 = 40,429.29 : x
  2. Step 2: Convert to fraction form
    73,963.29/102,070.23 = 40,429.29/x
  3. Step 3: Cross multiply
    73,963.29x = 102,070.23 × 40,429.29
  4. Step 4: Simplify right side
    73,963.29x = 4,126,626,929.04
  5. Step 5: Solve for x
    x = 4,126,626,929.04/73,963.29
  6. Step 6: Final answer
    x = 55,792.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.