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Finding the Fourth Proportional to 120,593.88, 180,866.04 and 45,688.20

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Solution

The fourth proportional to 120,593.88, 180,866.04 and 45,688.20 is: 68,522.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,593.88 : 180,866.04 = 45,688.20 : x
  2. Step 2: Convert to fraction form
    120,593.88/180,866.04 = 45,688.20/x
  3. Step 3: Cross multiply
    120,593.88x = 180,866.04 × 45,688.20
  4. Step 4: Simplify right side
    120,593.88x = 8,263,443,808.73
  5. Step 5: Solve for x
    x = 8,263,443,808.73/120,593.88
  6. Step 6: Final answer
    x = 68,522.91

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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.