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Finding the Fourth Proportional to 250,518.40, 375,354.96 and 123,989.92

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Solution

The fourth proportional to 250,518.40, 375,354.96 and 123,989.92 is: 185,775.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,518.40 : 375,354.96 = 123,989.92 : x
  2. Step 2: Convert to fraction form
    250,518.40/375,354.96 = 123,989.92/x
  3. Step 3: Cross multiply
    250,518.40x = 375,354.96 × 123,989.92
  4. Step 4: Simplify right side
    250,518.40x = 46,540,231,462.00
  5. Step 5: Solve for x
    x = 46,540,231,462.00/250,518.40
  6. Step 6: Final answer
    x = 185,775.70

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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.