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Finding the Fourth Proportional to 98,270.52, 135,571.29 and 64,219.91

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Solution

The fourth proportional to 98,270.52, 135,571.29 and 64,219.91 is: 88,596.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,270.52 : 135,571.29 = 64,219.91 : x
  2. Step 2: Convert to fraction form
    98,270.52/135,571.29 = 64,219.91/x
  3. Step 3: Cross multiply
    98,270.52x = 135,571.29 × 64,219.91
  4. Step 4: Simplify right side
    98,270.52x = 8,706,376,042.38
  5. Step 5: Solve for x
    x = 8,706,376,042.38/98,270.52
  6. Step 6: Final answer
    x = 88,596.01

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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.