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Finding the Fourth Proportional to 123,445.70, 185,168.55 and 34,702.10

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Solution

The fourth proportional to 123,445.70, 185,168.55 and 34,702.10 is: 52,053.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,445.70 : 185,168.55 = 34,702.10 : x
  2. Step 2: Convert to fraction form
    123,445.70/185,168.55 = 34,702.10/x
  3. Step 3: Cross multiply
    123,445.70x = 185,168.55 × 34,702.10
  4. Step 4: Simplify right side
    123,445.70x = 6,425,737,538.96
  5. Step 5: Solve for x
    x = 6,425,737,538.96/123,445.70
  6. Step 6: Final answer
    x = 52,053.15

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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.