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Finding the Fourth Proportional to 58,122.80, 80,233.88 and 49,216.48

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Solution

The fourth proportional to 58,122.80, 80,233.88 and 49,216.48 is: 67,939.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,122.80 : 80,233.88 = 49,216.48 : x
  2. Step 2: Convert to fraction form
    58,122.80/80,233.88 = 49,216.48/x
  3. Step 3: Cross multiply
    58,122.80x = 80,233.88 × 49,216.48
  4. Step 4: Simplify right side
    58,122.80x = 3,948,829,150.34
  5. Step 5: Solve for x
    x = 3,948,829,150.34/58,122.80
  6. Step 6: Final answer
    x = 67,939.42

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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.