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Finding the Fourth Proportional to 123,418.76, 185,075.73 and 48,526.97

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Solution

The fourth proportional to 123,418.76, 185,075.73 and 48,526.97 is: 72,769.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,418.76 : 185,075.73 = 48,526.97 : x
  2. Step 2: Convert to fraction form
    123,418.76/185,075.73 = 48,526.97/x
  3. Step 3: Cross multiply
    123,418.76x = 185,075.73 × 48,526.97
  4. Step 4: Simplify right side
    123,418.76x = 8,981,163,472.06
  5. Step 5: Solve for x
    x = 8,981,163,472.06/123,418.76
  6. Step 6: Final answer
    x = 72,769.84

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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.