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Finding the Fourth Proportional to 104,702.92, 144,543.54 and 80,775.88

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Solution

The fourth proportional to 104,702.92, 144,543.54 and 80,775.88 is: 111,512.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,702.92 : 144,543.54 = 80,775.88 : x
  2. Step 2: Convert to fraction form
    104,702.92/144,543.54 = 80,775.88/x
  3. Step 3: Cross multiply
    104,702.92x = 144,543.54 × 80,775.88
  4. Step 4: Simplify right side
    104,702.92x = 11,675,631,641.82
  5. Step 5: Solve for x
    x = 11,675,631,641.82/104,702.92
  6. Step 6: Final answer
    x = 111,512.00

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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.