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Finding the Fourth Proportional to 401,158.17, 553,516.47 and 237,742.70

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Solution

The fourth proportional to 401,158.17, 553,516.47 and 237,742.70 is: 328,036.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,158.17 : 553,516.47 = 237,742.70 : x
  2. Step 2: Convert to fraction form
    401,158.17/553,516.47 = 237,742.70/x
  3. Step 3: Cross multiply
    401,158.17x = 553,516.47 × 237,742.70
  4. Step 4: Simplify right side
    401,158.17x = 131,594,497,304.69
  5. Step 5: Solve for x
    x = 131,594,497,304.69/401,158.17
  6. Step 6: Final answer
    x = 328,036.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.