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Finding the Fourth Proportional to 218,965.04, 328,447.56 and 52,753.04

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Solution

The fourth proportional to 218,965.04, 328,447.56 and 52,753.04 is: 79,129.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,965.04 : 328,447.56 = 52,753.04 : x
  2. Step 2: Convert to fraction form
    218,965.04/328,447.56 = 52,753.04/x
  3. Step 3: Cross multiply
    218,965.04x = 328,447.56 × 52,753.04
  4. Step 4: Simplify right side
    218,965.04x = 17,326,607,270.58
  5. Step 5: Solve for x
    x = 17,326,607,270.58/218,965.04
  6. Step 6: Final answer
    x = 79,129.56

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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.