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Finding the Fourth Proportional to 86,098.08, 129,062.88 and 43,958.64

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Solution

The fourth proportional to 86,098.08, 129,062.88 and 43,958.64 is: 65,894.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,098.08 : 129,062.88 = 43,958.64 : x
  2. Step 2: Convert to fraction form
    86,098.08/129,062.88 = 43,958.64/x
  3. Step 3: Cross multiply
    86,098.08x = 129,062.88 × 43,958.64
  4. Step 4: Simplify right side
    86,098.08x = 5,673,428,679.28
  5. Step 5: Solve for x
    x = 5,673,428,679.28/86,098.08
  6. Step 6: Final answer
    x = 65,894.95

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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.