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Finding the Fourth Proportional to 178,963.66, 246,970.01 and 98,392.56

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Solution

The fourth proportional to 178,963.66, 246,970.01 and 98,392.56 is: 135,781.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,963.66 : 246,970.01 = 98,392.56 : x
  2. Step 2: Convert to fraction form
    178,963.66/246,970.01 = 98,392.56/x
  3. Step 3: Cross multiply
    178,963.66x = 246,970.01 × 98,392.56
  4. Step 4: Simplify right side
    178,963.66x = 24,300,011,527.13
  5. Step 5: Solve for x
    x = 24,300,011,527.13/178,963.66
  6. Step 6: Final answer
    x = 135,781.82

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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.