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Finding the Fourth Proportional to 144,542.66, 216,812.76 and 112,979.26

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Solution

The fourth proportional to 144,542.66, 216,812.76 and 112,979.26 is: 169,467.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,542.66 : 216,812.76 = 112,979.26 : x
  2. Step 2: Convert to fraction form
    144,542.66/216,812.76 = 112,979.26/x
  3. Step 3: Cross multiply
    144,542.66x = 216,812.76 × 112,979.26
  4. Step 4: Simplify right side
    144,542.66x = 24,495,345,183.36
  5. Step 5: Solve for x
    x = 24,495,345,183.36/144,542.66
  6. Step 6: Final answer
    x = 169,467.93

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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.