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Finding the Fourth Proportional to 102,562.88, 153,789.28 and 52,622.56

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Solution

The fourth proportional to 102,562.88, 153,789.28 and 52,622.56 is: 78,905.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,562.88 : 153,789.28 = 52,622.56 : x
  2. Step 2: Convert to fraction form
    102,562.88/153,789.28 = 52,622.56/x
  3. Step 3: Cross multiply
    102,562.88x = 153,789.28 × 52,622.56
  4. Step 4: Simplify right side
    102,562.88x = 8,092,785,614.16
  5. Step 5: Solve for x
    x = 8,092,785,614.16/102,562.88
  6. Step 6: Final answer
    x = 78,905.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.