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Finding the Fourth Proportional to 101,160.59, 139,611.85 and 86,867.73

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Solution

The fourth proportional to 101,160.59, 139,611.85 and 86,867.73 is: 119,886.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,160.59 : 139,611.85 = 86,867.73 : x
  2. Step 2: Convert to fraction form
    101,160.59/139,611.85 = 86,867.73/x
  3. Step 3: Cross multiply
    101,160.59x = 139,611.85 × 86,867.73
  4. Step 4: Simplify right side
    101,160.59x = 12,127,765,220.98
  5. Step 5: Solve for x
    x = 12,127,765,220.98/101,160.59
  6. Step 6: Final answer
    x = 119,886.27

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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.