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Finding the Fourth Proportional to 119,612.88, 165,057.18 and 65,894.76

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Solution

The fourth proportional to 119,612.88, 165,057.18 and 65,894.76 is: 90,930.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,612.88 : 165,057.18 = 65,894.76 : x
  2. Step 2: Convert to fraction form
    119,612.88/165,057.18 = 65,894.76/x
  3. Step 3: Cross multiply
    119,612.88x = 165,057.18 × 65,894.76
  4. Step 4: Simplify right side
    119,612.88x = 10,876,403,262.38
  5. Step 5: Solve for x
    x = 10,876,403,262.38/119,612.88
  6. Step 6: Final answer
    x = 90,930.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.