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Finding the Fourth Proportional to 71,862.22, 107,866.89 and 59,342.36

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Solution

The fourth proportional to 71,862.22, 107,866.89 and 59,342.36 is: 89,074.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,862.22 : 107,866.89 = 59,342.36 : x
  2. Step 2: Convert to fraction form
    71,862.22/107,866.89 = 59,342.36/x
  3. Step 3: Cross multiply
    71,862.22x = 107,866.89 × 59,342.36
  4. Step 4: Simplify right side
    71,862.22x = 6,401,075,279.13
  5. Step 5: Solve for x
    x = 6,401,075,279.13/71,862.22
  6. Step 6: Final answer
    x = 89,074.28

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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.