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Finding the Fourth Proportional to 107,081.88, 147,781.50 and 59,339.76

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Solution

The fourth proportional to 107,081.88, 147,781.50 and 59,339.76 is: 81,893.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,081.88 : 147,781.50 = 59,339.76 : x
  2. Step 2: Convert to fraction form
    107,081.88/147,781.50 = 59,339.76/x
  3. Step 3: Cross multiply
    107,081.88x = 147,781.50 × 59,339.76
  4. Step 4: Simplify right side
    107,081.88x = 8,769,318,742.44
  5. Step 5: Solve for x
    x = 8,769,318,742.44/107,081.88
  6. Step 6: Final answer
    x = 81,893.58

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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.