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Finding the Fourth Proportional to 125,615.52, 188,818.56 and 116,167.68

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Solution

The fourth proportional to 125,615.52, 188,818.56 and 116,167.68 is: 174,617.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,615.52 : 188,818.56 = 116,167.68 : x
  2. Step 2: Convert to fraction form
    125,615.52/188,818.56 = 116,167.68/x
  3. Step 3: Cross multiply
    125,615.52x = 188,818.56 × 116,167.68
  4. Step 4: Simplify right side
    125,615.52x = 21,934,614,056.14
  5. Step 5: Solve for x
    x = 21,934,614,056.14/125,615.52
  6. Step 6: Final answer
    x = 174,617.07

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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.