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Finding the Fourth Proportional to 436,862.80, 655,294.20 and 141,374.80

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Solution

The fourth proportional to 436,862.80, 655,294.20 and 141,374.80 is: 212,062.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,862.80 : 655,294.20 = 141,374.80 : x
  2. Step 2: Convert to fraction form
    436,862.80/655,294.20 = 141,374.80/x
  3. Step 3: Cross multiply
    436,862.80x = 655,294.20 × 141,374.80
  4. Step 4: Simplify right side
    436,862.80x = 92,642,086,466.16
  5. Step 5: Solve for x
    x = 92,642,086,466.16/436,862.80
  6. Step 6: Final answer
    x = 212,062.20

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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.