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Finding the Fourth Proportional to 118,965.87, 164,177.63 and 65,252.85

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Solution

The fourth proportional to 118,965.87, 164,177.63 and 65,252.85 is: 90,051.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,965.87 : 164,177.63 = 65,252.85 : x
  2. Step 2: Convert to fraction form
    118,965.87/164,177.63 = 65,252.85/x
  3. Step 3: Cross multiply
    118,965.87x = 164,177.63 × 65,252.85
  4. Step 4: Simplify right side
    118,965.87x = 10,713,057,937.48
  5. Step 5: Solve for x
    x = 10,713,057,937.48/118,965.87
  6. Step 6: Final answer
    x = 90,051.52

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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.