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Finding the Fourth Proportional to 239,712.67, 359,475.58 and 89,871.22

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Solution

The fourth proportional to 239,712.67, 359,475.58 and 89,871.22 is: 134,771.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,712.67 : 359,475.58 = 89,871.22 : x
  2. Step 2: Convert to fraction form
    239,712.67/359,475.58 = 89,871.22/x
  3. Step 3: Cross multiply
    239,712.67x = 359,475.58 × 89,871.22
  4. Step 4: Simplify right side
    239,712.67x = 32,306,508,934.81
  5. Step 5: Solve for x
    x = 32,306,508,934.81/239,712.67
  6. Step 6: Final answer
    x = 134,771.80

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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.