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Finding the Fourth Proportional to 60,079.73, 90,133.26 and 31,984.98

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Solution

The fourth proportional to 60,079.73, 90,133.26 and 31,984.98 is: 47,984.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,079.73 : 90,133.26 = 31,984.98 : x
  2. Step 2: Convert to fraction form
    60,079.73/90,133.26 = 31,984.98/x
  3. Step 3: Cross multiply
    60,079.73x = 90,133.26 × 31,984.98
  4. Step 4: Simplify right side
    60,079.73x = 2,882,910,358.51
  5. Step 5: Solve for x
    x = 2,882,910,358.51/60,079.73
  6. Step 6: Final answer
    x = 47,984.74

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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.