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Finding the Fourth Proportional to 112,679.78, 169,008.67 and 29,573.78

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Solution

The fourth proportional to 112,679.78, 169,008.67 and 29,573.78 is: 44,357.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,679.78 : 169,008.67 = 29,573.78 : x
  2. Step 2: Convert to fraction form
    112,679.78/169,008.67 = 29,573.78/x
  3. Step 3: Cross multiply
    112,679.78x = 169,008.67 × 29,573.78
  4. Step 4: Simplify right side
    112,679.78x = 4,998,225,150.74
  5. Step 5: Solve for x
    x = 4,998,225,150.74/112,679.78
  6. Step 6: Final answer
    x = 44,357.78

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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.