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Finding the Fourth Proportional to 125,902.10, 188,853.15 and 118,514.90

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Solution

The fourth proportional to 125,902.10, 188,853.15 and 118,514.90 is: 177,772.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,902.10 : 188,853.15 = 118,514.90 : x
  2. Step 2: Convert to fraction form
    125,902.10/188,853.15 = 118,514.90/x
  3. Step 3: Cross multiply
    125,902.10x = 188,853.15 × 118,514.90
  4. Step 4: Simplify right side
    125,902.10x = 22,381,912,186.94
  5. Step 5: Solve for x
    x = 22,381,912,186.94/125,902.10
  6. Step 6: Final answer
    x = 177,772.35

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1.5x scale

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.