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Finding the Fourth Proportional to 52,805.16, 79,010.88 and 52,214.64

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Solution

The fourth proportional to 52,805.16, 79,010.88 and 52,214.64 is: 78,127.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,805.16 : 79,010.88 = 52,214.64 : x
  2. Step 2: Convert to fraction form
    52,805.16/79,010.88 = 52,214.64/x
  3. Step 3: Cross multiply
    52,805.16x = 79,010.88 × 52,214.64
  4. Step 4: Simplify right side
    52,805.16x = 4,125,524,655.28
  5. Step 5: Solve for x
    x = 4,125,524,655.28/52,805.16
  6. Step 6: Final answer
    x = 78,127.30

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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.