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Finding the Fourth Proportional to 71,860.65, 107,790.98 and 32,429.04

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Solution

The fourth proportional to 71,860.65, 107,790.98 and 32,429.04 is: 48,643.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,860.65 : 107,790.98 = 32,429.04 : x
  2. Step 2: Convert to fraction form
    71,860.65/107,790.98 = 32,429.04/x
  3. Step 3: Cross multiply
    71,860.65x = 107,790.98 × 32,429.04
  4. Step 4: Simplify right side
    71,860.65x = 3,495,558,133.23
  5. Step 5: Solve for x
    x = 3,495,558,133.23/71,860.65
  6. Step 6: Final answer
    x = 48,643.56

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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.