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Finding the Fourth Proportional to 288,492.52, 398,134.92 and 173,807.26

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Solution

The fourth proportional to 288,492.52, 398,134.92 and 173,807.26 is: 239,863.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,492.52 : 398,134.92 = 173,807.26 : x
  2. Step 2: Convert to fraction form
    288,492.52/398,134.92 = 173,807.26/x
  3. Step 3: Cross multiply
    288,492.52x = 398,134.92 × 173,807.26
  4. Step 4: Simplify right side
    288,492.52x = 69,198,739,555.52
  5. Step 5: Solve for x
    x = 69,198,739,555.52/288,492.52
  6. Step 6: Final answer
    x = 239,863.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.