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Finding the Fourth Proportional to 159,298.52, 239,095.40 and 80,468.10

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Solution

The fourth proportional to 159,298.52, 239,095.40 and 80,468.10 is: 120,776.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,298.52 : 239,095.40 = 80,468.10 : x
  2. Step 2: Convert to fraction form
    159,298.52/239,095.40 = 80,468.10/x
  3. Step 3: Cross multiply
    159,298.52x = 239,095.40 × 80,468.10
  4. Step 4: Simplify right side
    159,298.52x = 19,239,552,556.74
  5. Step 5: Solve for x
    x = 19,239,552,556.74/159,298.52
  6. Step 6: Final answer
    x = 120,776.72

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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.