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Finding the Fourth Proportional to 132,290.93, 198,463.73 and 43,549.76

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Solution

The fourth proportional to 132,290.93, 198,463.73 and 43,549.76 is: 65,333.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,290.93 : 198,463.73 = 43,549.76 : x
  2. Step 2: Convert to fraction form
    132,290.93/198,463.73 = 43,549.76/x
  3. Step 3: Cross multiply
    132,290.93x = 198,463.73 × 43,549.76
  4. Step 4: Simplify right side
    132,290.93x = 8,643,047,810.20
  5. Step 5: Solve for x
    x = 8,643,047,810.20/132,290.93
  6. Step 6: Final answer
    x = 65,333.64

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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.