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Finding the Fourth Proportional to 159,908.72, 239,819.28 and 60,061.20

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Solution

The fourth proportional to 159,908.72, 239,819.28 and 60,061.20 is: 90,075.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,908.72 : 239,819.28 = 60,061.20 : x
  2. Step 2: Convert to fraction form
    159,908.72/239,819.28 = 60,061.20/x
  3. Step 3: Cross multiply
    159,908.72x = 239,819.28 × 60,061.20
  4. Step 4: Simplify right side
    159,908.72x = 14,403,833,739.94
  5. Step 5: Solve for x
    x = 14,403,833,739.94/159,908.72
  6. Step 6: Final answer
    x = 90,075.35

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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.