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Finding the Fourth Proportional to 206,616.60, 309,779.10 and 94,350.60

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Solution

The fourth proportional to 206,616.60, 309,779.10 and 94,350.60 is: 141,459.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,616.60 : 309,779.10 = 94,350.60 : x
  2. Step 2: Convert to fraction form
    206,616.60/309,779.10 = 94,350.60/x
  3. Step 3: Cross multiply
    206,616.60x = 309,779.10 × 94,350.60
  4. Step 4: Simplify right side
    206,616.60x = 29,227,843,952.46
  5. Step 5: Solve for x
    x = 29,227,843,952.46/206,616.60
  6. Step 6: Final answer
    x = 141,459.32

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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.