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Finding the Fourth Proportional to 173,449.91, 239,400.87 and 112,915.11

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Solution

The fourth proportional to 173,449.91, 239,400.87 and 112,915.11 is: 155,848.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,449.91 : 239,400.87 = 112,915.11 : x
  2. Step 2: Convert to fraction form
    173,449.91/239,400.87 = 112,915.11/x
  3. Step 3: Cross multiply
    173,449.91x = 239,400.87 × 112,915.11
  4. Step 4: Simplify right side
    173,449.91x = 27,031,976,044.47
  5. Step 5: Solve for x
    x = 27,031,976,044.47/173,449.91
  6. Step 6: Final answer
    x = 155,848.89

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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.