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Finding the Fourth Proportional to 119,625.86, 165,082.88 and 65,909.63

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Solution

The fourth proportional to 119,625.86, 165,082.88 and 65,909.63 is: 90,954.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,625.86 : 165,082.88 = 65,909.63 : x
  2. Step 2: Convert to fraction form
    119,625.86/165,082.88 = 65,909.63/x
  3. Step 3: Cross multiply
    119,625.86x = 165,082.88 × 65,909.63
  4. Step 4: Simplify right side
    119,625.86x = 10,880,551,210.59
  5. Step 5: Solve for x
    x = 10,880,551,210.59/119,625.86
  6. Step 6: Final answer
    x = 90,954.84

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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.