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Finding the Fourth Proportional to 144,885.60, 217,328.40 and 132,055.20

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Solution

The fourth proportional to 144,885.60, 217,328.40 and 132,055.20 is: 198,082.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,885.60 : 217,328.40 = 132,055.20 : x
  2. Step 2: Convert to fraction form
    144,885.60/217,328.40 = 132,055.20/x
  3. Step 3: Cross multiply
    144,885.60x = 217,328.40 × 132,055.20
  4. Step 4: Simplify right side
    144,885.60x = 28,699,345,327.68
  5. Step 5: Solve for x
    x = 28,699,345,327.68/144,885.60
  6. Step 6: Final answer
    x = 198,082.80

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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.