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Finding the Fourth Proportional to 322,955.49, 484,482.45 and 165,130.64

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Solution

The fourth proportional to 322,955.49, 484,482.45 and 165,130.64 is: 247,721.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,955.49 : 484,482.45 = 165,130.64 : x
  2. Step 2: Convert to fraction form
    322,955.49/484,482.45 = 165,130.64/x
  3. Step 3: Cross multiply
    322,955.49x = 484,482.45 × 165,130.64
  4. Step 4: Simplify right side
    322,955.49x = 80,002,894,614.86
  5. Step 5: Solve for x
    x = 80,002,894,614.86/322,955.49
  6. Step 6: Final answer
    x = 247,721.12

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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.