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Finding the Fourth Proportional to 324,808.93, 487,355.81 and 154,153.90

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Solution

The fourth proportional to 324,808.93, 487,355.81 and 154,153.90 is: 231,298.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,808.93 : 487,355.81 = 154,153.90 : x
  2. Step 2: Convert to fraction form
    324,808.93/487,355.81 = 154,153.90/x
  3. Step 3: Cross multiply
    324,808.93x = 487,355.81 × 154,153.90
  4. Step 4: Simplify right side
    324,808.93x = 75,127,798,799.16
  5. Step 5: Solve for x
    x = 75,127,798,799.16/324,808.93
  6. Step 6: Final answer
    x = 231,298.44

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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.