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Finding the Fourth Proportional to 132,066.80, 198,100.20 and 48,943.60

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Solution

The fourth proportional to 132,066.80, 198,100.20 and 48,943.60 is: 73,415.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,066.80 : 198,100.20 = 48,943.60 : x
  2. Step 2: Convert to fraction form
    132,066.80/198,100.20 = 48,943.60/x
  3. Step 3: Cross multiply
    132,066.80x = 198,100.20 × 48,943.60
  4. Step 4: Simplify right side
    132,066.80x = 9,695,736,948.72
  5. Step 5: Solve for x
    x = 9,695,736,948.72/132,066.80
  6. Step 6: Final answer
    x = 73,415.40

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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.