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Finding the Fourth Proportional to 102,925.68, 142,040.08 and 60,486.48

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Solution

The fourth proportional to 102,925.68, 142,040.08 and 60,486.48 is: 83,472.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,925.68 : 142,040.08 = 60,486.48 : x
  2. Step 2: Convert to fraction form
    102,925.68/142,040.08 = 60,486.48/x
  3. Step 3: Cross multiply
    102,925.68x = 142,040.08 × 60,486.48
  4. Step 4: Simplify right side
    102,925.68x = 8,591,504,458.12
  5. Step 5: Solve for x
    x = 8,591,504,458.12/102,925.68
  6. Step 6: Final answer
    x = 83,472.89

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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.