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Finding the Fourth Proportional to 48,610.80, 72,932.40 and 43,384.80

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Solution

The fourth proportional to 48,610.80, 72,932.40 and 43,384.80 is: 65,091.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,610.80 : 72,932.40 = 43,384.80 : x
  2. Step 2: Convert to fraction form
    48,610.80/72,932.40 = 43,384.80/x
  3. Step 3: Cross multiply
    48,610.80x = 72,932.40 × 43,384.80
  4. Step 4: Simplify right side
    48,610.80x = 3,164,157,587.52
  5. Step 5: Solve for x
    x = 3,164,157,587.52/48,610.80
  6. Step 6: Final answer
    x = 65,091.66

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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.