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Finding the Fourth Proportional to 499,942.48, 750,023.88 and 144,971.32

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Solution

The fourth proportional to 499,942.48, 750,023.88 and 144,971.32 is: 217,488.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,942.48 : 750,023.88 = 144,971.32 : x
  2. Step 2: Convert to fraction form
    499,942.48/750,023.88 = 144,971.32/x
  3. Step 3: Cross multiply
    499,942.48x = 750,023.88 × 144,971.32
  4. Step 4: Simplify right side
    499,942.48x = 108,731,951,915.12
  5. Step 5: Solve for x
    x = 108,731,951,915.12/499,942.48
  6. Step 6: Final answer
    x = 217,488.92

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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.