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Finding the Fourth Proportional to 123,670.98, 185,521.25 and 43,692.39

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Solution

The fourth proportional to 123,670.98, 185,521.25 and 43,692.39 is: 65,543.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,670.98 : 185,521.25 = 43,692.39 : x
  2. Step 2: Convert to fraction form
    123,670.98/185,521.25 = 43,692.39/x
  3. Step 3: Cross multiply
    123,670.98x = 185,521.25 × 43,692.39
  4. Step 4: Simplify right side
    123,670.98x = 8,105,866,808.29
  5. Step 5: Solve for x
    x = 8,105,866,808.29/123,670.98
  6. Step 6: Final answer
    x = 65,543.81

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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.