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Finding the Fourth Proportional to 178,915.45, 246,909.81 and 98,349.10

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Solution

The fourth proportional to 178,915.45, 246,909.81 and 98,349.10 is: 135,725.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,915.45 : 246,909.81 = 98,349.10 : x
  2. Step 2: Convert to fraction form
    178,915.45/246,909.81 = 98,349.10/x
  3. Step 3: Cross multiply
    178,915.45x = 246,909.81 × 98,349.10
  4. Step 4: Simplify right side
    178,915.45x = 24,283,357,594.67
  5. Step 5: Solve for x
    x = 24,283,357,594.67/178,915.45
  6. Step 6: Final answer
    x = 135,725.32

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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.