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Finding the Fourth Proportional to 321,515.04, 482,276.16 and 153,050.88

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Solution

The fourth proportional to 321,515.04, 482,276.16 and 153,050.88 is: 229,578.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,515.04 : 482,276.16 = 153,050.88 : x
  2. Step 2: Convert to fraction form
    321,515.04/482,276.16 = 153,050.88/x
  3. Step 3: Cross multiply
    321,515.04x = 482,276.16 × 153,050.88
  4. Step 4: Simplify right side
    321,515.04x = 73,812,790,691.02
  5. Step 5: Solve for x
    x = 73,812,790,691.02/321,515.04
  6. Step 6: Final answer
    x = 229,578.03

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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.