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Finding the Fourth Proportional to 95,301.90, 142,981.40 and 28,744.20

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Solution

The fourth proportional to 95,301.90, 142,981.40 and 28,744.20 is: 43,124.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,301.90 : 142,981.40 = 28,744.20 : x
  2. Step 2: Convert to fraction form
    95,301.90/142,981.40 = 28,744.20/x
  3. Step 3: Cross multiply
    95,301.90x = 142,981.40 × 28,744.20
  4. Step 4: Simplify right side
    95,301.90x = 4,109,886,029.74
  5. Step 5: Solve for x
    x = 4,109,886,029.74/95,301.90
  6. Step 6: Final answer
    x = 43,124.91

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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.