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Finding the Fourth Proportional to 358,920.62, 495,332.52 and 197,775.64

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Solution

The fourth proportional to 358,920.62, 495,332.52 and 197,775.64 is: 272,942.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,920.62 : 495,332.52 = 197,775.64 : x
  2. Step 2: Convert to fraction form
    358,920.62/495,332.52 = 197,775.64/x
  3. Step 3: Cross multiply
    358,920.62x = 495,332.52 × 197,775.64
  4. Step 4: Simplify right side
    358,920.62x = 97,964,706,033.32
  5. Step 5: Solve for x
    x = 97,964,706,033.32/358,920.62
  6. Step 6: Final answer
    x = 272,942.54

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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.