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Finding the Fourth Proportional to 101,375.04, 139,885.47 and 56,046.90

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Solution

The fourth proportional to 101,375.04, 139,885.47 and 56,046.90 is: 77,338.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,375.04 : 139,885.47 = 56,046.90 : x
  2. Step 2: Convert to fraction form
    101,375.04/139,885.47 = 56,046.90/x
  3. Step 3: Cross multiply
    101,375.04x = 139,885.47 × 56,046.90
  4. Step 4: Simplify right side
    101,375.04x = 7,840,146,948.54
  5. Step 5: Solve for x
    x = 7,840,146,948.54/101,375.04
  6. Step 6: Final answer
    x = 77,338.04

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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.