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Finding the Fourth Proportional to 125,668.64, 188,564.45 and 59,115.48

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Solution

The fourth proportional to 125,668.64, 188,564.45 and 59,115.48 is: 88,702.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,668.64 : 188,564.45 = 59,115.48 : x
  2. Step 2: Convert to fraction form
    125,668.64/188,564.45 = 59,115.48/x
  3. Step 3: Cross multiply
    125,668.64x = 188,564.45 × 59,115.48
  4. Step 4: Simplify right side
    125,668.64x = 11,147,077,677.11
  5. Step 5: Solve for x
    x = 11,147,077,677.11/125,668.64
  6. Step 6: Final answer
    x = 88,702.15

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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.