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Finding the Fourth Proportional to 487,680.30, 731,330.92 and 167,771.42

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Solution

The fourth proportional to 487,680.30, 731,330.92 and 167,771.42 is: 251,591.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,680.30 : 731,330.92 = 167,771.42 : x
  2. Step 2: Convert to fraction form
    487,680.30/731,330.92 = 167,771.42/x
  3. Step 3: Cross multiply
    487,680.30x = 731,330.92 × 167,771.42
  4. Step 4: Simplify right side
    487,680.30x = 122,696,426,938.31
  5. Step 5: Solve for x
    x = 122,696,426,938.31/487,680.30
  6. Step 6: Final answer
    x = 251,591.93

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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.