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Finding the Fourth Proportional to 577,404.60, 866,106.90 and 156,680.48

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Solution

The fourth proportional to 577,404.60, 866,106.90 and 156,680.48 is: 235,020.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,404.60 : 866,106.90 = 156,680.48 : x
  2. Step 2: Convert to fraction form
    577,404.60/866,106.90 = 156,680.48/x
  3. Step 3: Cross multiply
    577,404.60x = 866,106.90 × 156,680.48
  4. Step 4: Simplify right side
    577,404.60x = 135,702,040,492.78
  5. Step 5: Solve for x
    x = 135,702,040,492.78/577,404.60
  6. Step 6: Final answer
    x = 235,020.71

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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.