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Finding the Fourth Proportional to 325,154.92, 487,101.12 and 239,610.36

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Solution

The fourth proportional to 325,154.92, 487,101.12 and 239,610.36 is: 358,950.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,154.92 : 487,101.12 = 239,610.36 : x
  2. Step 2: Convert to fraction form
    325,154.92/487,101.12 = 239,610.36/x
  3. Step 3: Cross multiply
    325,154.92x = 487,101.12 × 239,610.36
  4. Step 4: Simplify right side
    325,154.92x = 116,714,474,719.60
  5. Step 5: Solve for x
    x = 116,714,474,719.60/325,154.92
  6. Step 6: Final answer
    x = 358,950.36

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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.