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Finding the Fourth Proportional to 159,501.80, 239,252.70 and 153,378.20

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Solution

The fourth proportional to 159,501.80, 239,252.70 and 153,378.20 is: 230,067.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,501.80 : 239,252.70 = 153,378.20 : x
  2. Step 2: Convert to fraction form
    159,501.80/239,252.70 = 153,378.20/x
  3. Step 3: Cross multiply
    159,501.80x = 239,252.70 × 153,378.20
  4. Step 4: Simplify right side
    159,501.80x = 36,696,148,471.14
  5. Step 5: Solve for x
    x = 36,696,148,471.14/159,501.80
  6. Step 6: Final answer
    x = 230,067.30

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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.