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Finding the Fourth Proportional to 123,379.28, 185,030.64 and 44,483.28

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Solution

The fourth proportional to 123,379.28, 185,030.64 and 44,483.28 is: 66,711.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,379.28 : 185,030.64 = 44,483.28 : x
  2. Step 2: Convert to fraction form
    123,379.28/185,030.64 = 44,483.28/x
  3. Step 3: Cross multiply
    123,379.28x = 185,030.64 × 44,483.28
  4. Step 4: Simplify right side
    123,379.28x = 8,230,769,767.70
  5. Step 5: Solve for x
    x = 8,230,769,767.70/123,379.28
  6. Step 6: Final answer
    x = 66,711.12

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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.