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Finding the Fourth Proportional to 89,124.90, 133,691.36 and 29,156.79

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Solution

The fourth proportional to 89,124.90, 133,691.36 and 29,156.79 is: 43,736.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,124.90 : 133,691.36 = 29,156.79 : x
  2. Step 2: Convert to fraction form
    89,124.90/133,691.36 = 29,156.79/x
  3. Step 3: Cross multiply
    89,124.90x = 133,691.36 × 29,156.79
  4. Step 4: Simplify right side
    89,124.90x = 3,898,010,908.33
  5. Step 5: Solve for x
    x = 3,898,010,908.33/89,124.90
  6. Step 6: Final answer
    x = 43,736.50

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1.5x scale

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.