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Finding the Fourth Proportional to 132,777.80, 199,166.70 and 122,280.20

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Solution

The fourth proportional to 132,777.80, 199,166.70 and 122,280.20 is: 183,420.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,777.80 : 199,166.70 = 122,280.20 : x
  2. Step 2: Convert to fraction form
    132,777.80/199,166.70 = 122,280.20/x
  3. Step 3: Cross multiply
    132,777.80x = 199,166.70 × 122,280.20
  4. Step 4: Simplify right side
    132,777.80x = 24,354,143,909.34
  5. Step 5: Solve for x
    x = 24,354,143,909.34/132,777.80
  6. Step 6: Final answer
    x = 183,420.30

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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.