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Finding the Fourth Proportional to 111,123.38, 153,350.87 and 60,822.38

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Solution

The fourth proportional to 111,123.38, 153,350.87 and 60,822.38 is: 83,935.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,123.38 : 153,350.87 = 60,822.38 : x
  2. Step 2: Convert to fraction form
    111,123.38/153,350.87 = 60,822.38/x
  3. Step 3: Cross multiply
    111,123.38x = 153,350.87 × 60,822.38
  4. Step 4: Simplify right side
    111,123.38x = 9,327,163,817.60
  5. Step 5: Solve for x
    x = 9,327,163,817.60/111,123.38
  6. Step 6: Final answer
    x = 83,935.21

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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.