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Finding the Fourth Proportional to 54,117.80, 81,176.70 and 52,044.20

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Solution

The fourth proportional to 54,117.80, 81,176.70 and 52,044.20 is: 78,066.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,117.80 : 81,176.70 = 52,044.20 : x
  2. Step 2: Convert to fraction form
    54,117.80/81,176.70 = 52,044.20/x
  3. Step 3: Cross multiply
    54,117.80x = 81,176.70 × 52,044.20
  4. Step 4: Simplify right side
    54,117.80x = 4,224,776,410.14
  5. Step 5: Solve for x
    x = 4,224,776,410.14/54,117.80
  6. Step 6: Final answer
    x = 78,066.30

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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.