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Finding the Fourth Proportional to 112,891.88, 169,349.16 and 29,785.88

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Solution

The fourth proportional to 112,891.88, 169,349.16 and 29,785.88 is: 44,681.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,891.88 : 169,349.16 = 29,785.88 : x
  2. Step 2: Convert to fraction form
    112,891.88/169,349.16 = 29,785.88/x
  3. Step 3: Cross multiply
    112,891.88x = 169,349.16 × 29,785.88
  4. Step 4: Simplify right side
    112,891.88x = 5,044,212,911.12
  5. Step 5: Solve for x
    x = 5,044,212,911.12/112,891.88
  6. Step 6: Final answer
    x = 44,681.81

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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.