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Finding the Fourth Proportional to 83,125.92, 124,692.58 and 30,506.70

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Solution

The fourth proportional to 83,125.92, 124,692.58 and 30,506.70 is: 45,761.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,125.92 : 124,692.58 = 30,506.70 : x
  2. Step 2: Convert to fraction form
    83,125.92/124,692.58 = 30,506.70/x
  3. Step 3: Cross multiply
    83,125.92x = 124,692.58 × 30,506.70
  4. Step 4: Simplify right side
    83,125.92x = 3,803,959,130.29
  5. Step 5: Solve for x
    x = 3,803,959,130.29/83,125.92
  6. Step 6: Final answer
    x = 45,761.41

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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.