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Finding the Fourth Proportional to 84,301.82, 126,343.71 and 63,075.32

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Solution

The fourth proportional to 84,301.82, 126,343.71 and 63,075.32 is: 94,531.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,301.82 : 126,343.71 = 63,075.32 : x
  2. Step 2: Convert to fraction form
    84,301.82/126,343.71 = 63,075.32/x
  3. Step 3: Cross multiply
    84,301.82x = 126,343.71 × 63,075.32
  4. Step 4: Simplify right side
    84,301.82x = 7,969,169,306.52
  5. Step 5: Solve for x
    x = 7,969,169,306.52/84,301.82
  6. Step 6: Final answer
    x = 94,531.41

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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.