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Finding the Fourth Proportional to 402,723.30, 604,043.34 and 136,476.90

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Solution

The fourth proportional to 402,723.30, 604,043.34 and 136,476.90 is: 204,701.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,723.30 : 604,043.34 = 136,476.90 : x
  2. Step 2: Convert to fraction form
    402,723.30/604,043.34 = 136,476.90/x
  3. Step 3: Cross multiply
    402,723.30x = 604,043.34 × 136,476.90
  4. Step 4: Simplify right side
    402,723.30x = 82,437,962,508.85
  5. Step 5: Solve for x
    x = 82,437,962,508.85/402,723.30
  6. Step 6: Final answer
    x = 204,701.25

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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.