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Finding the Fourth Proportional to 324,784, 487,118.49 and 88,145.08

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Solution

The fourth proportional to 324,784, 487,118.49 and 88,145.08 is: 132,202.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,784 : 487,118.49 = 88,145.08 : x
  2. Step 2: Convert to fraction form
    324,784/487,118.49 = 88,145.08/x
  3. Step 3: Cross multiply
    324,784x = 487,118.49 × 88,145.08
  4. Step 4: Simplify right side
    324,784x = 42,937,098,270.53
  5. Step 5: Solve for x
    x = 42,937,098,270.53/324,784
  6. Step 6: Final answer
    x = 132,202.01

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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.