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Finding the Fourth Proportional to 112,888.46, 169,000.51 and 75,355.44

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Solution

The fourth proportional to 112,888.46, 169,000.51 and 75,355.44 is: 112,811.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,888.46 : 169,000.51 = 75,355.44 : x
  2. Step 2: Convert to fraction form
    112,888.46/169,000.51 = 75,355.44/x
  3. Step 3: Cross multiply
    112,888.46x = 169,000.51 × 75,355.44
  4. Step 4: Simplify right side
    112,888.46x = 12,735,106,569.49
  5. Step 5: Solve for x
    x = 12,735,106,569.49/112,888.46
  6. Step 6: Final answer
    x = 112,811.41

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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.