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Finding the Fourth Proportional to 322,094.64, 483,165.72 and 85,432.08

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Solution

The fourth proportional to 322,094.64, 483,165.72 and 85,432.08 is: 128,154.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,094.64 : 483,165.72 = 85,432.08 : x
  2. Step 2: Convert to fraction form
    322,094.64/483,165.72 = 85,432.08/x
  3. Step 3: Cross multiply
    322,094.64x = 483,165.72 × 85,432.08
  4. Step 4: Simplify right side
    322,094.64x = 41,277,852,444.30
  5. Step 5: Solve for x
    x = 41,277,852,444.30/322,094.64
  6. Step 6: Final answer
    x = 128,154.42

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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.