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Finding the Fourth Proportional to 71,855.62, 99,160.68 and 41,658.46

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Solution

The fourth proportional to 71,855.62, 99,160.68 and 41,658.46 is: 57,488.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,855.62 : 99,160.68 = 41,658.46 : x
  2. Step 2: Convert to fraction form
    71,855.62/99,160.68 = 41,658.46/x
  3. Step 3: Cross multiply
    71,855.62x = 99,160.68 × 41,658.46
  4. Step 4: Simplify right side
    71,855.62x = 4,130,881,221.35
  5. Step 5: Solve for x
    x = 4,130,881,221.35/71,855.62
  6. Step 6: Final answer
    x = 57,488.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.