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Finding the Fourth Proportional to 71,381.52, 106,875.18 and 53,798.04

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Solution

The fourth proportional to 71,381.52, 106,875.18 and 53,798.04 is: 80,548.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,381.52 : 106,875.18 = 53,798.04 : x
  2. Step 2: Convert to fraction form
    71,381.52/106,875.18 = 53,798.04/x
  3. Step 3: Cross multiply
    71,381.52x = 106,875.18 × 53,798.04
  4. Step 4: Simplify right side
    71,381.52x = 5,749,675,208.65
  5. Step 5: Solve for x
    x = 5,749,675,208.65/71,381.52
  6. Step 6: Final answer
    x = 80,548.51

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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.