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Finding the Fourth Proportional to 123,451.76, 185,139.44 and 44,556

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Solution

The fourth proportional to 123,451.76, 185,139.44 and 44,556 is: 66,820.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,451.76 : 185,139.44 = 44,556 : x
  2. Step 2: Convert to fraction form
    123,451.76/185,139.44 = 44,556/x
  3. Step 3: Cross multiply
    123,451.76x = 185,139.44 × 44,556
  4. Step 4: Simplify right side
    123,451.76x = 8,249,072,888.64
  5. Step 5: Solve for x
    x = 8,249,072,888.64/123,451.76
  6. Step 6: Final answer
    x = 66,820.21

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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.