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Finding the Fourth Proportional to 88,963.50, 122,769.72 and 51,237.84

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Solution

The fourth proportional to 88,963.50, 122,769.72 and 51,237.84 is: 70,708.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,963.50 : 122,769.72 = 51,237.84 : x
  2. Step 2: Convert to fraction form
    88,963.50/122,769.72 = 51,237.84/x
  3. Step 3: Cross multiply
    88,963.50x = 122,769.72 × 51,237.84
  4. Step 4: Simplify right side
    88,963.50x = 6,290,455,270.20
  5. Step 5: Solve for x
    x = 6,290,455,270.20/88,963.50
  6. Step 6: Final answer
    x = 70,708.27

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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.