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Finding the Fourth Proportional to 91,357.12, 137,006.52 and 29,013.04

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Solution

The fourth proportional to 91,357.12, 137,006.52 and 29,013.04 is: 43,510.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,357.12 : 137,006.52 = 29,013.04 : x
  2. Step 2: Convert to fraction form
    91,357.12/137,006.52 = 29,013.04/x
  3. Step 3: Cross multiply
    91,357.12x = 137,006.52 × 29,013.04
  4. Step 4: Simplify right side
    91,357.12x = 3,974,975,645.02
  5. Step 5: Solve for x
    x = 3,974,975,645.02/91,357.12
  6. Step 6: Final answer
    x = 43,510.30

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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.