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Finding the Fourth Proportional to 367,863.62, 551,935.53 and 128,004.17

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Solution

The fourth proportional to 367,863.62, 551,935.53 and 128,004.17 is: 192,055.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,863.62 : 551,935.53 = 128,004.17 : x
  2. Step 2: Convert to fraction form
    367,863.62/551,935.53 = 128,004.17/x
  3. Step 3: Cross multiply
    367,863.62x = 551,935.53 × 128,004.17
  4. Step 4: Simplify right side
    367,863.62x = 70,650,049,411.16
  5. Step 5: Solve for x
    x = 70,650,049,411.16/367,863.62
  6. Step 6: Final answer
    x = 192,055.01

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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.