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Finding the Fourth Proportional to 83,495.88, 124,948.16 and 51,920.80

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Solution

The fourth proportional to 83,495.88, 124,948.16 and 51,920.80 is: 77,697.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,495.88 : 124,948.16 = 51,920.80 : x
  2. Step 2: Convert to fraction form
    83,495.88/124,948.16 = 51,920.80/x
  3. Step 3: Cross multiply
    83,495.88x = 124,948.16 × 51,920.80
  4. Step 4: Simplify right side
    83,495.88x = 6,487,408,425.73
  5. Step 5: Solve for x
    x = 6,487,408,425.73/83,495.88
  6. Step 6: Final answer
    x = 77,697.35

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1.5x scale

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.