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Finding the Fourth Proportional to 267,030.80, 400,805.40 and 134,061.20

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Solution

The fourth proportional to 267,030.80, 400,805.40 and 134,061.20 is: 201,221.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,030.80 : 400,805.40 = 134,061.20 : x
  2. Step 2: Convert to fraction form
    267,030.80/400,805.40 = 134,061.20/x
  3. Step 3: Cross multiply
    267,030.80x = 400,805.40 × 134,061.20
  4. Step 4: Simplify right side
    267,030.80x = 53,732,452,890.48
  5. Step 5: Solve for x
    x = 53,732,452,890.48/267,030.80
  6. Step 6: Final answer
    x = 201,221.93

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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.