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Finding the Fourth Proportional to 375,179.84, 562,708.96 and 138,633.92

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Solution

The fourth proportional to 375,179.84, 562,708.96 and 138,633.92 is: 207,928.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,179.84 : 562,708.96 = 138,633.92 : x
  2. Step 2: Convert to fraction form
    375,179.84/562,708.96 = 138,633.92/x
  3. Step 3: Cross multiply
    375,179.84x = 562,708.96 × 138,633.92
  4. Step 4: Simplify right side
    375,179.84x = 78,010,548,943.92
  5. Step 5: Solve for x
    x = 78,010,548,943.92/375,179.84
  6. Step 6: Final answer
    x = 207,928.41

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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.