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Finding the Fourth Proportional to 123,260.64, 185,006.52 and 64,138.20

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Solution

The fourth proportional to 123,260.64, 185,006.52 and 64,138.20 is: 96,267.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,260.64 : 185,006.52 = 64,138.20 : x
  2. Step 2: Convert to fraction form
    123,260.64/185,006.52 = 64,138.20/x
  3. Step 3: Cross multiply
    123,260.64x = 185,006.52 × 64,138.20
  4. Step 4: Simplify right side
    123,260.64x = 11,865,985,181.06
  5. Step 5: Solve for x
    x = 11,865,985,181.06/123,260.64
  6. Step 6: Final answer
    x = 96,267.43

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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.