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Finding the Fourth Proportional to 178,765.66, 246,689.98 and 98,188.38

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Solution

The fourth proportional to 178,765.66, 246,689.98 and 98,188.38 is: 135,496.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,765.66 : 246,689.98 = 98,188.38 : x
  2. Step 2: Convert to fraction form
    178,765.66/246,689.98 = 98,188.38/x
  3. Step 3: Cross multiply
    178,765.66x = 246,689.98 × 98,188.38
  4. Step 4: Simplify right side
    178,765.66x = 24,222,088,835.30
  5. Step 5: Solve for x
    x = 24,222,088,835.30/178,765.66
  6. Step 6: Final answer
    x = 135,496.32

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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.