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Finding the Fourth Proportional to 123,596.78, 185,347.22 and 42,528.41

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Solution

The fourth proportional to 123,596.78, 185,347.22 and 42,528.41 is: 63,776.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,596.78 : 185,347.22 = 42,528.41 : x
  2. Step 2: Convert to fraction form
    123,596.78/185,347.22 = 42,528.41/x
  3. Step 3: Cross multiply
    123,596.78x = 185,347.22 × 42,528.41
  4. Step 4: Simplify right side
    123,596.78x = 7,882,521,425.14
  5. Step 5: Solve for x
    x = 7,882,521,425.14/123,596.78
  6. Step 6: Final answer
    x = 63,776.11

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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.