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Finding the Fourth Proportional to 555,986.64, 834,028.92 and 156,630.72

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Solution

The fourth proportional to 555,986.64, 834,028.92 and 156,630.72 is: 234,959.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,986.64 : 834,028.92 = 156,630.72 : x
  2. Step 2: Convert to fraction form
    555,986.64/834,028.92 = 156,630.72/x
  3. Step 3: Cross multiply
    555,986.64x = 834,028.92 × 156,630.72
  4. Step 4: Simplify right side
    555,986.64x = 130,634,550,240.42
  5. Step 5: Solve for x
    x = 130,634,550,240.42/555,986.64
  6. Step 6: Final answer
    x = 234,959.87

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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.