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Finding the Fourth Proportional to 144,951.63, 217,489.38 and 74,880.15

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Solution

The fourth proportional to 144,951.63, 217,489.38 and 74,880.15 is: 112,352.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,951.63 : 217,489.38 = 74,880.15 : x
  2. Step 2: Convert to fraction form
    144,951.63/217,489.38 = 74,880.15/x
  3. Step 3: Cross multiply
    144,951.63x = 217,489.38 × 74,880.15
  4. Step 4: Simplify right side
    144,951.63x = 16,285,637,397.81
  5. Step 5: Solve for x
    x = 16,285,637,397.81/144,951.63
  6. Step 6: Final answer
    x = 112,352.22

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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.