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Finding the Fourth Proportional to 112,863.61, 169,278.13 and 29,764.09

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Solution

The fourth proportional to 112,863.61, 169,278.13 and 29,764.09 is: 44,641.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,863.61 : 169,278.13 = 29,764.09 : x
  2. Step 2: Convert to fraction form
    112,863.61/169,278.13 = 29,764.09/x
  3. Step 3: Cross multiply
    112,863.61x = 169,278.13 × 29,764.09
  4. Step 4: Simplify right side
    112,863.61x = 5,038,409,496.35
  5. Step 5: Solve for x
    x = 5,038,409,496.35/112,863.61
  6. Step 6: Final answer
    x = 44,641.58

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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.