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Finding the Fourth Proportional to 321,337.10, 482,005.65 and 163,873.10

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Solution

The fourth proportional to 321,337.10, 482,005.65 and 163,873.10 is: 245,809.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,337.10 : 482,005.65 = 163,873.10 : x
  2. Step 2: Convert to fraction form
    321,337.10/482,005.65 = 163,873.10/x
  3. Step 3: Cross multiply
    321,337.10x = 482,005.65 × 163,873.10
  4. Step 4: Simplify right side
    321,337.10x = 78,987,760,083.02
  5. Step 5: Solve for x
    x = 78,987,760,083.02/321,337.10
  6. Step 6: Final answer
    x = 245,809.65

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1.5x scale

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.