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Finding the Fourth Proportional to 99,452.14, 137,243.97 and 54,740.14

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Solution

The fourth proportional to 99,452.14, 137,243.97 and 54,740.14 is: 75,541.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,452.14 : 137,243.97 = 54,740.14 : x
  2. Step 2: Convert to fraction form
    99,452.14/137,243.97 = 54,740.14/x
  3. Step 3: Cross multiply
    99,452.14x = 137,243.97 × 54,740.14
  4. Step 4: Simplify right side
    99,452.14x = 7,512,754,131.96
  5. Step 5: Solve for x
    x = 7,512,754,131.96/99,452.14
  6. Step 6: Final answer
    x = 75,541.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.