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Finding the Fourth Proportional to 487,609.47, 731,232.32 and 167,670.83

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Solution

The fourth proportional to 487,609.47, 731,232.32 and 167,670.83 is: 251,443.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,609.47 : 731,232.32 = 167,670.83 : x
  2. Step 2: Convert to fraction form
    487,609.47/731,232.32 = 167,670.83/x
  3. Step 3: Cross multiply
    487,609.47x = 731,232.32 × 167,670.83
  4. Step 4: Simplify right side
    487,609.47x = 122,606,331,006.95
  5. Step 5: Solve for x
    x = 122,606,331,006.95/487,609.47
  6. Step 6: Final answer
    x = 251,443.70

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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.