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Finding the Fourth Proportional to 178,988.81, 246,998.24 and 98,415.77

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Solution

The fourth proportional to 178,988.81, 246,998.24 and 98,415.77 is: 135,810.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,988.81 : 246,998.24 = 98,415.77 : x
  2. Step 2: Convert to fraction form
    178,988.81/246,998.24 = 98,415.77/x
  3. Step 3: Cross multiply
    178,988.81x = 246,998.24 × 98,415.77
  4. Step 4: Simplify right side
    178,988.81x = 24,308,522,472.72
  5. Step 5: Solve for x
    x = 24,308,522,472.72/178,988.81
  6. Step 6: Final answer
    x = 135,810.29

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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.