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Finding the Fourth Proportional to 468,459.60, 702,631.20 and 131,526.72

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Solution

The fourth proportional to 468,459.60, 702,631.20 and 131,526.72 is: 197,273.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,459.60 : 702,631.20 = 131,526.72 : x
  2. Step 2: Convert to fraction form
    468,459.60/702,631.20 = 131,526.72/x
  3. Step 3: Cross multiply
    468,459.60x = 702,631.20 × 131,526.72
  4. Step 4: Simplify right side
    468,459.60x = 92,414,777,105.66
  5. Step 5: Solve for x
    x = 92,414,777,105.66/468,459.60
  6. Step 6: Final answer
    x = 197,273.74

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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.