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Finding the Fourth Proportional to 178,938, 246,937.56 and 98,368.92

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Solution

The fourth proportional to 178,938, 246,937.56 and 98,368.92 is: 135,750.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,938 : 246,937.56 = 98,368.92 : x
  2. Step 2: Convert to fraction form
    178,938/246,937.56 = 98,368.92/x
  3. Step 3: Cross multiply
    178,938x = 246,937.56 × 98,368.92
  4. Step 4: Simplify right side
    178,938x = 24,290,981,084.64
  5. Step 5: Solve for x
    x = 24,290,981,084.64/178,938
  6. Step 6: Final answer
    x = 135,750.82

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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.