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Finding the Fourth Proportional to 324,886.92, 487,338.48 and 154,068.45

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Solution

The fourth proportional to 324,886.92, 487,338.48 and 154,068.45 is: 231,106.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,886.92 : 487,338.48 = 154,068.45 : x
  2. Step 2: Convert to fraction form
    324,886.92/487,338.48 = 154,068.45/x
  3. Step 3: Cross multiply
    324,886.92x = 487,338.48 × 154,068.45
  4. Step 4: Simplify right side
    324,886.92x = 75,083,484,238.96
  5. Step 5: Solve for x
    x = 75,083,484,238.96/324,886.92
  6. Step 6: Final answer
    x = 231,106.52

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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.