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Finding the Fourth Proportional to 178,584.68, 246,455.80 and 98,011.50

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Solution

The fourth proportional to 178,584.68, 246,455.80 and 98,011.50 is: 135,260.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,584.68 : 246,455.80 = 98,011.50 : x
  2. Step 2: Convert to fraction form
    178,584.68/246,455.80 = 98,011.50/x
  3. Step 3: Cross multiply
    178,584.68x = 246,455.80 × 98,011.50
  4. Step 4: Simplify right side
    178,584.68x = 24,155,502,641.70
  5. Step 5: Solve for x
    x = 24,155,502,641.70/178,584.68
  6. Step 6: Final answer
    x = 135,260.78

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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.