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Finding the Fourth Proportional to 178,915.74, 246,898.71 and 98,343.42

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Solution

The fourth proportional to 178,915.74, 246,898.71 and 98,343.42 is: 135,711.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,915.74 : 246,898.71 = 98,343.42 : x
  2. Step 2: Convert to fraction form
    178,915.74/246,898.71 = 98,343.42/x
  3. Step 3: Cross multiply
    178,915.74x = 246,898.71 × 98,343.42
  4. Step 4: Simplify right side
    178,915.74x = 24,280,863,534.99
  5. Step 5: Solve for x
    x = 24,280,863,534.99/178,915.74
  6. Step 6: Final answer
    x = 135,711.17

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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.