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Finding the Fourth Proportional to 75,755.34, 104,542.58 and 45,557.96

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Solution

The fourth proportional to 75,755.34, 104,542.58 and 45,557.96 is: 62,870.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,755.34 : 104,542.58 = 45,557.96 : x
  2. Step 2: Convert to fraction form
    75,755.34/104,542.58 = 45,557.96/x
  3. Step 3: Cross multiply
    75,755.34x = 104,542.58 × 45,557.96
  4. Step 4: Simplify right side
    75,755.34x = 4,762,746,098.28
  5. Step 5: Solve for x
    x = 4,762,746,098.28/75,755.34
  6. Step 6: Final answer
    x = 62,870.11

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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.