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Finding the Fourth Proportional to 248,061.16, 371,663.78 and 135,822.16

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Solution

The fourth proportional to 248,061.16, 371,663.78 and 135,822.16 is: 203,498.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,061.16 : 371,663.78 = 135,822.16 : x
  2. Step 2: Convert to fraction form
    248,061.16/371,663.78 = 135,822.16/x
  3. Step 3: Cross multiply
    248,061.16x = 371,663.78 × 135,822.16
  4. Step 4: Simplify right side
    248,061.16x = 50,480,177,393.36
  5. Step 5: Solve for x
    x = 50,480,177,393.36/248,061.16
  6. Step 6: Final answer
    x = 203,498.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.