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Finding the Fourth Proportional to 74,347.80, 102,600.02 and 40,356.27

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Solution

The fourth proportional to 74,347.80, 102,600.02 and 40,356.27 is: 55,691.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,347.80 : 102,600.02 = 40,356.27 : x
  2. Step 2: Convert to fraction form
    74,347.80/102,600.02 = 40,356.27/x
  3. Step 3: Cross multiply
    74,347.80x = 102,600.02 × 40,356.27
  4. Step 4: Simplify right side
    74,347.80x = 4,140,553,907.34
  5. Step 5: Solve for x
    x = 4,140,553,907.34/74,347.80
  6. Step 6: Final answer
    x = 55,691.68

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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.