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Finding the Fourth Proportional to 76,702.70, 105,878.61 and 44,881.85

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Solution

The fourth proportional to 76,702.70, 105,878.61 and 44,881.85 is: 61,953.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,702.70 : 105,878.61 = 44,881.85 : x
  2. Step 2: Convert to fraction form
    76,702.70/105,878.61 = 44,881.85/x
  3. Step 3: Cross multiply
    76,702.70x = 105,878.61 × 44,881.85
  4. Step 4: Simplify right side
    76,702.70x = 4,752,027,362.84
  5. Step 5: Solve for x
    x = 4,752,027,362.84/76,702.70
  6. Step 6: Final answer
    x = 61,953.85

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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.