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Finding the Fourth Proportional to 556,367.77, 834,434.88 and 156,915.12

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Solution

The fourth proportional to 556,367.77, 834,434.88 and 156,915.12 is: 235,339.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,367.77 : 834,434.88 = 156,915.12 : x
  2. Step 2: Convert to fraction form
    556,367.77/834,434.88 = 156,915.12/x
  3. Step 3: Cross multiply
    556,367.77x = 834,434.88 × 156,915.12
  4. Step 4: Simplify right side
    556,367.77x = 130,935,452,456.52
  5. Step 5: Solve for x
    x = 130,935,452,456.52/556,367.77
  6. Step 6: Final answer
    x = 235,339.75

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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.