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Finding the Fourth Proportional to 125,746.90, 188,620.82 and 119,440.14

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Solution

The fourth proportional to 125,746.90, 188,620.82 and 119,440.14 is: 179,160.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,746.90 : 188,620.82 = 119,440.14 : x
  2. Step 2: Convert to fraction form
    125,746.90/188,620.82 = 119,440.14/x
  3. Step 3: Cross multiply
    125,746.90x = 188,620.82 × 119,440.14
  4. Step 4: Simplify right side
    125,746.90x = 22,528,897,147.71
  5. Step 5: Solve for x
    x = 22,528,897,147.71/125,746.90
  6. Step 6: Final answer
    x = 179,160.66

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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.