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Finding the Fourth Proportional to 58,049.73, 80,047.80 and 42,974.01

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Solution

The fourth proportional to 58,049.73, 80,047.80 and 42,974.01 is: 59,259.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,049.73 : 80,047.80 = 42,974.01 : x
  2. Step 2: Convert to fraction form
    58,049.73/80,047.80 = 42,974.01/x
  3. Step 3: Cross multiply
    58,049.73x = 80,047.80 × 42,974.01
  4. Step 4: Simplify right side
    58,049.73x = 3,439,974,957.68
  5. Step 5: Solve for x
    x = 3,439,974,957.68/58,049.73
  6. Step 6: Final answer
    x = 59,259.10

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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.