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Finding the Fourth Proportional to 86,682.60, 130,023.90 and 73,560.60

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Solution

The fourth proportional to 86,682.60, 130,023.90 and 73,560.60 is: 110,340.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,682.60 : 130,023.90 = 73,560.60 : x
  2. Step 2: Convert to fraction form
    86,682.60/130,023.90 = 73,560.60/x
  3. Step 3: Cross multiply
    86,682.60x = 130,023.90 × 73,560.60
  4. Step 4: Simplify right side
    86,682.60x = 9,564,636,098.34
  5. Step 5: Solve for x
    x = 9,564,636,098.34/86,682.60
  6. Step 6: Final answer
    x = 110,340.90

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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.