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Finding the Fourth Proportional to 87,535.98, 120,810.42 and 49,802.94

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Solution

The fourth proportional to 87,535.98, 120,810.42 and 49,802.94 is: 68,734.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,535.98 : 120,810.42 = 49,802.94 : x
  2. Step 2: Convert to fraction form
    87,535.98/120,810.42 = 49,802.94/x
  3. Step 3: Cross multiply
    87,535.98x = 120,810.42 × 49,802.94
  4. Step 4: Simplify right side
    87,535.98x = 6,016,714,098.63
  5. Step 5: Solve for x
    x = 6,016,714,098.63/87,535.98
  6. Step 6: Final answer
    x = 68,734.18

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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.