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Finding the Fourth Proportional to 143,364.10, 215,046.15 and 134,616.10

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Solution

The fourth proportional to 143,364.10, 215,046.15 and 134,616.10 is: 201,924.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,364.10 : 215,046.15 = 134,616.10 : x
  2. Step 2: Convert to fraction form
    143,364.10/215,046.15 = 134,616.10/x
  3. Step 3: Cross multiply
    143,364.10x = 215,046.15 × 134,616.10
  4. Step 4: Simplify right side
    143,364.10x = 28,948,674,033.02
  5. Step 5: Solve for x
    x = 28,948,674,033.02/143,364.10
  6. Step 6: Final answer
    x = 201,924.15

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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.