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Finding the Fourth Proportional to 316,950.30, 437,402.50 and 173,710.31

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Solution

The fourth proportional to 316,950.30, 437,402.50 and 173,710.31 is: 239,726.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,950.30 : 437,402.50 = 173,710.31 : x
  2. Step 2: Convert to fraction form
    316,950.30/437,402.50 = 173,710.31/x
  3. Step 3: Cross multiply
    316,950.30x = 437,402.50 × 173,710.31
  4. Step 4: Simplify right side
    316,950.30x = 75,981,321,248.49
  5. Step 5: Solve for x
    x = 75,981,321,248.49/316,950.30
  6. Step 6: Final answer
    x = 239,726.30

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1.5x scale

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.