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Finding the Fourth Proportional to 111,123.60, 153,344.52 and 60,812.88

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Solution

The fourth proportional to 111,123.60, 153,344.52 and 60,812.88 is: 83,918.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,123.60 : 153,344.52 = 60,812.88 : x
  2. Step 2: Convert to fraction form
    111,123.60/153,344.52 = 60,812.88/x
  3. Step 3: Cross multiply
    111,123.60x = 153,344.52 × 60,812.88
  4. Step 4: Simplify right side
    111,123.60x = 9,325,321,893.42
  5. Step 5: Solve for x
    x = 9,325,321,893.42/111,123.60
  6. Step 6: Final answer
    x = 83,918.46

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