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Finding the Fourth Proportional to 178,651.83, 246,543.31 and 98,079.11

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Solution

The fourth proportional to 178,651.83, 246,543.31 and 98,079.11 is: 135,351.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,651.83 : 246,543.31 = 98,079.11 : x
  2. Step 2: Convert to fraction form
    178,651.83/246,543.31 = 98,079.11/x
  3. Step 3: Cross multiply
    178,651.83x = 246,543.31 × 98,079.11
  4. Step 4: Simplify right side
    178,651.83x = 24,180,748,421.25
  5. Step 5: Solve for x
    x = 24,180,748,421.25/178,651.83
  6. Step 6: Final answer
    x = 135,351.25

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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.