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Finding the Fourth Proportional to 75,647.58, 104,443.98 and 61,371.96

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Solution

The fourth proportional to 75,647.58, 104,443.98 and 61,371.96 is: 84,734.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,647.58 : 104,443.98 = 61,371.96 : x
  2. Step 2: Convert to fraction form
    75,647.58/104,443.98 = 61,371.96/x
  3. Step 3: Cross multiply
    75,647.58x = 104,443.98 × 61,371.96
  4. Step 4: Simplify right side
    75,647.58x = 6,409,931,762.80
  5. Step 5: Solve for x
    x = 6,409,931,762.80/75,647.58
  6. Step 6: Final answer
    x = 84,734.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.