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Finding the Fourth Proportional to 86,551.70, 129,827.55 and 49,097.30

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Solution

The fourth proportional to 86,551.70, 129,827.55 and 49,097.30 is: 73,645.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,551.70 : 129,827.55 = 49,097.30 : x
  2. Step 2: Convert to fraction form
    86,551.70/129,827.55 = 49,097.30/x
  3. Step 3: Cross multiply
    86,551.70x = 129,827.55 × 49,097.30
  4. Step 4: Simplify right side
    86,551.70x = 6,374,182,170.62
  5. Step 5: Solve for x
    x = 6,374,182,170.62/86,551.70
  6. Step 6: Final answer
    x = 73,645.95

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Similar ratio
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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.