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Finding the Fourth Proportional to 178,422, 246,222.36 and 98,934

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Solution

The fourth proportional to 178,422, 246,222.36 and 98,934 is: 136,528.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,422 : 246,222.36 = 98,934 : x
  2. Step 2: Convert to fraction form
    178,422/246,222.36 = 98,934/x
  3. Step 3: Cross multiply
    178,422x = 246,222.36 × 98,934
  4. Step 4: Simplify right side
    178,422x = 24,359,762,964.24
  5. Step 5: Solve for x
    x = 24,359,762,964.24/178,422
  6. Step 6: Final answer
    x = 136,528.92

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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.