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Finding the Fourth Proportional to 218,917.22, 328,375.82 and 169,070.02

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Solution

The fourth proportional to 218,917.22, 328,375.82 and 169,070.02 is: 253,605.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,917.22 : 328,375.82 = 169,070.02 : x
  2. Step 2: Convert to fraction form
    218,917.22/328,375.82 = 169,070.02/x
  3. Step 3: Cross multiply
    218,917.22x = 328,375.82 × 169,070.02
  4. Step 4: Simplify right side
    218,917.22x = 55,518,506,056.65
  5. Step 5: Solve for x
    x = 55,518,506,056.65/218,917.22
  6. Step 6: Final answer
    x = 253,605.03

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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.