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Finding the Fourth Proportional to 82,752.98, 124,207.20 and 43,338.38

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Solution

The fourth proportional to 82,752.98, 124,207.20 and 43,338.38 is: 65,048.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,752.98 : 124,207.20 = 43,338.38 : x
  2. Step 2: Convert to fraction form
    82,752.98/124,207.20 = 43,338.38/x
  3. Step 3: Cross multiply
    82,752.98x = 124,207.20 × 43,338.38
  4. Step 4: Simplify right side
    82,752.98x = 5,382,938,832.34
  5. Step 5: Solve for x
    x = 5,382,938,832.34/82,752.98
  6. Step 6: Final answer
    x = 65,048.28

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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.