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Finding the Fourth Proportional to 406,170.12, 609,350.24 and 125,672.52

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Solution

The fourth proportional to 406,170.12, 609,350.24 and 125,672.52 is: 188,538.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,170.12 : 609,350.24 = 125,672.52 : x
  2. Step 2: Convert to fraction form
    406,170.12/609,350.24 = 125,672.52/x
  3. Step 3: Cross multiply
    406,170.12x = 609,350.24 × 125,672.52
  4. Step 4: Simplify right side
    406,170.12x = 76,578,580,223.40
  5. Step 5: Solve for x
    x = 76,578,580,223.40/406,170.12
  6. Step 6: Final answer
    x = 188,538.19

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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.