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Finding the Fourth Proportional to 239,217.75, 358,826.64 and 98,980.02

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Solution

The fourth proportional to 239,217.75, 358,826.64 and 98,980.02 is: 148,470.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,217.75 : 358,826.64 = 98,980.02 : x
  2. Step 2: Convert to fraction form
    239,217.75/358,826.64 = 98,980.02/x
  3. Step 3: Cross multiply
    239,217.75x = 358,826.64 × 98,980.02
  4. Step 4: Simplify right side
    239,217.75x = 35,516,668,003.73
  5. Step 5: Solve for x
    x = 35,516,668,003.73/239,217.75
  6. Step 6: Final answer
    x = 148,470.04

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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.