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Finding the Fourth Proportional to 316,898.76, 437,319.30 and 173,660.04

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Solution

The fourth proportional to 316,898.76, 437,319.30 and 173,660.04 is: 239,650.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,898.76 : 437,319.30 = 173,660.04 : x
  2. Step 2: Convert to fraction form
    316,898.76/437,319.30 = 173,660.04/x
  3. Step 3: Cross multiply
    316,898.76x = 437,319.30 × 173,660.04
  4. Step 4: Simplify right side
    316,898.76x = 75,944,887,130.77
  5. Step 5: Solve for x
    x = 75,944,887,130.77/316,898.76
  6. Step 6: Final answer
    x = 239,650.31

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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.