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Finding the Fourth Proportional to 75,063.98, 103,543.17 and 49,570.58

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Solution

The fourth proportional to 75,063.98, 103,543.17 and 49,570.58 is: 68,377.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,063.98 : 103,543.17 = 49,570.58 : x
  2. Step 2: Convert to fraction form
    75,063.98/103,543.17 = 49,570.58/x
  3. Step 3: Cross multiply
    75,063.98x = 103,543.17 × 49,570.58
  4. Step 4: Simplify right side
    75,063.98x = 5,132,694,991.94
  5. Step 5: Solve for x
    x = 5,132,694,991.94/75,063.98
  6. Step 6: Final answer
    x = 68,377.60

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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.