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Finding the Fourth Proportional to 112,752.92, 155,597.04 and 61,766.66

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Solution

The fourth proportional to 112,752.92, 155,597.04 and 61,766.66 is: 85,236.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,752.92 : 155,597.04 = 61,766.66 : x
  2. Step 2: Convert to fraction form
    112,752.92/155,597.04 = 61,766.66/x
  3. Step 3: Cross multiply
    112,752.92x = 155,597.04 × 61,766.66
  4. Step 4: Simplify right side
    112,752.92x = 9,610,709,466.69
  5. Step 5: Solve for x
    x = 9,610,709,466.69/112,752.92
  6. Step 6: Final answer
    x = 85,236.90

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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.