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Finding the Fourth Proportional to 86,095.38, 129,156.42 and 43,952.64

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Solution

The fourth proportional to 86,095.38, 129,156.42 and 43,952.64 is: 65,935.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,095.38 : 129,156.42 = 43,952.64 : x
  2. Step 2: Convert to fraction form
    86,095.38/129,156.42 = 43,952.64/x
  3. Step 3: Cross multiply
    86,095.38x = 129,156.42 × 43,952.64
  4. Step 4: Simplify right side
    86,095.38x = 5,676,765,631.95
  5. Step 5: Solve for x
    x = 5,676,765,631.95/86,095.38
  6. Step 6: Final answer
    x = 65,935.78

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1.5x scale

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.