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Finding the Fourth Proportional to 118,744.79, 178,116.91 and 48,624.17

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Solution

The fourth proportional to 118,744.79, 178,116.91 and 48,624.17 is: 72,936.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,744.79 : 178,116.91 = 48,624.17 : x
  2. Step 2: Convert to fraction form
    118,744.79/178,116.91 = 48,624.17/x
  3. Step 3: Cross multiply
    118,744.79x = 178,116.91 × 48,624.17
  4. Step 4: Simplify right side
    118,744.79x = 8,660,785,899.57
  5. Step 5: Solve for x
    x = 8,660,785,899.57/118,744.79
  6. Step 6: Final answer
    x = 72,936.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.