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Finding the Fourth Proportional to 117,888.72, 176,833.07 and 29,143.90

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Solution

The fourth proportional to 117,888.72, 176,833.07 and 29,143.90 is: 43,715.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,888.72 : 176,833.07 = 29,143.90 : x
  2. Step 2: Convert to fraction form
    117,888.72/176,833.07 = 29,143.90/x
  3. Step 3: Cross multiply
    117,888.72x = 176,833.07 × 29,143.90
  4. Step 4: Simplify right side
    117,888.72x = 5,153,605,657.32
  5. Step 5: Solve for x
    x = 5,153,605,657.32/117,888.72
  6. Step 6: Final answer
    x = 43,715.85

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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.