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Finding the Fourth Proportional to 61,157.99, 84,363.85 and 38,488.52

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Solution

The fourth proportional to 61,157.99, 84,363.85 and 38,488.52 is: 53,092.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,157.99 : 84,363.85 = 38,488.52 : x
  2. Step 2: Convert to fraction form
    61,157.99/84,363.85 = 38,488.52/x
  3. Step 3: Cross multiply
    61,157.99x = 84,363.85 × 38,488.52
  4. Step 4: Simplify right side
    61,157.99x = 3,247,039,728.00
  5. Step 5: Solve for x
    x = 3,247,039,728.00/61,157.99
  6. Step 6: Final answer
    x = 53,092.65

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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.