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Finding the Fourth Proportional to 453,273.60, 679,953.12 and 133,425.68

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Solution

The fourth proportional to 453,273.60, 679,953.12 and 133,425.68 is: 200,151.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,273.60 : 679,953.12 = 133,425.68 : x
  2. Step 2: Convert to fraction form
    453,273.60/679,953.12 = 133,425.68/x
  3. Step 3: Cross multiply
    453,273.60x = 679,953.12 × 133,425.68
  4. Step 4: Simplify right side
    453,273.60x = 90,723,207,404.12
  5. Step 5: Solve for x
    x = 90,723,207,404.12/453,273.60
  6. Step 6: Final answer
    x = 200,151.10

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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.