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Finding the Fourth Proportional to 175,308.52, 242,042.42 and 103,711.48

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Solution

The fourth proportional to 175,308.52, 242,042.42 and 103,711.48 is: 143,190.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,308.52 : 242,042.42 = 103,711.48 : x
  2. Step 2: Convert to fraction form
    175,308.52/242,042.42 = 103,711.48/x
  3. Step 3: Cross multiply
    175,308.52x = 242,042.42 × 103,711.48
  4. Step 4: Simplify right side
    175,308.52x = 25,102,577,600.98
  5. Step 5: Solve for x
    x = 25,102,577,600.98/175,308.52
  6. Step 6: Final answer
    x = 143,190.86

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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.