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Finding the Fourth Proportional to 75,266.32, 112,900.02 and 61,209.94

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Solution

The fourth proportional to 75,266.32, 112,900.02 and 61,209.94 is: 91,815.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,266.32 : 112,900.02 = 61,209.94 : x
  2. Step 2: Convert to fraction form
    75,266.32/112,900.02 = 61,209.94/x
  3. Step 3: Cross multiply
    75,266.32x = 112,900.02 × 61,209.94
  4. Step 4: Simplify right side
    75,266.32x = 6,910,603,450.20
  5. Step 5: Solve for x
    x = 6,910,603,450.20/75,266.32
  6. Step 6: Final answer
    x = 91,815.35

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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.