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Finding the Fourth Proportional to 288,052.20, 432,272.70 and 169,597.80

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Solution

The fourth proportional to 288,052.20, 432,272.70 and 169,597.80 is: 254,511.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,052.20 : 432,272.70 = 169,597.80 : x
  2. Step 2: Convert to fraction form
    288,052.20/432,272.70 = 169,597.80/x
  3. Step 3: Cross multiply
    288,052.20x = 432,272.70 × 169,597.80
  4. Step 4: Simplify right side
    288,052.20x = 73,312,498,920.06
  5. Step 5: Solve for x
    x = 73,312,498,920.06/288,052.20
  6. Step 6: Final answer
    x = 254,511.16

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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.