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Finding the Fourth Proportional to 358,874.60, 495,247.91 and 197,729.15

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Solution

The fourth proportional to 358,874.60, 495,247.91 and 197,729.15 is: 272,866.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,874.60 : 495,247.91 = 197,729.15 : x
  2. Step 2: Convert to fraction form
    358,874.60/495,247.91 = 197,729.15/x
  3. Step 3: Cross multiply
    358,874.60x = 495,247.91 × 197,729.15
  4. Step 4: Simplify right side
    358,874.60x = 97,924,944,818.69
  5. Step 5: Solve for x
    x = 97,924,944,818.69/358,874.60
  6. Step 6: Final answer
    x = 272,866.75

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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.