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Finding the Fourth Proportional to 99,017.93, 136,608.92 and 65,044.70

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Solution

The fourth proportional to 99,017.93, 136,608.92 and 65,044.70 is: 89,738.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,017.93 : 136,608.92 = 65,044.70 : x
  2. Step 2: Convert to fraction form
    99,017.93/136,608.92 = 65,044.70/x
  3. Step 3: Cross multiply
    99,017.93x = 136,608.92 × 65,044.70
  4. Step 4: Simplify right side
    99,017.93x = 8,885,685,893.50
  5. Step 5: Solve for x
    x = 8,885,685,893.50/99,017.93
  6. Step 6: Final answer
    x = 89,738.15

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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.