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Finding the Fourth Proportional to 132,389.01, 198,471.59 and 57,452.48

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Solution

The fourth proportional to 132,389.01, 198,471.59 and 57,452.48 is: 86,130.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,389.01 : 198,471.59 = 57,452.48 : x
  2. Step 2: Convert to fraction form
    132,389.01/198,471.59 = 57,452.48/x
  3. Step 3: Cross multiply
    132,389.01x = 198,471.59 × 57,452.48
  4. Step 4: Simplify right side
    132,389.01x = 11,402,683,775.42
  5. Step 5: Solve for x
    x = 11,402,683,775.42/132,389.01
  6. Step 6: Final answer
    x = 86,130.14

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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.