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Finding the Fourth Proportional to 119,625.36, 165,082.19 and 65,909.13

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Solution

The fourth proportional to 119,625.36, 165,082.19 and 65,909.13 is: 90,954.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,625.36 : 165,082.19 = 65,909.13 : x
  2. Step 2: Convert to fraction form
    119,625.36/165,082.19 = 65,909.13/x
  3. Step 3: Cross multiply
    119,625.36x = 165,082.19 × 65,909.13
  4. Step 4: Simplify right side
    119,625.36x = 10,880,423,191.85
  5. Step 5: Solve for x
    x = 10,880,423,191.85/119,625.36
  6. Step 6: Final answer
    x = 90,954.15

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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.