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Finding the Fourth Proportional to 72,944.46, 100,692.35 and 62,694.93

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Solution

The fourth proportional to 72,944.46, 100,692.35 and 62,694.93 is: 86,543.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,944.46 : 100,692.35 = 62,694.93 : x
  2. Step 2: Convert to fraction form
    72,944.46/100,692.35 = 62,694.93/x
  3. Step 3: Cross multiply
    72,944.46x = 100,692.35 × 62,694.93
  4. Step 4: Simplify right side
    72,944.46x = 6,312,899,834.79
  5. Step 5: Solve for x
    x = 6,312,899,834.79/72,944.46
  6. Step 6: Final answer
    x = 86,543.92

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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.