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Finding the Fourth Proportional to 192,003.60, 288,149.40 and 98,461.20

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Solution

The fourth proportional to 192,003.60, 288,149.40 and 98,461.20 is: 147,765.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,003.60 : 288,149.40 = 98,461.20 : x
  2. Step 2: Convert to fraction form
    192,003.60/288,149.40 = 98,461.20/x
  3. Step 3: Cross multiply
    192,003.60x = 288,149.40 × 98,461.20
  4. Step 4: Simplify right side
    192,003.60x = 28,371,535,703.28
  5. Step 5: Solve for x
    x = 28,371,535,703.28/192,003.60
  6. Step 6: Final answer
    x = 147,765.64

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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.