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Finding the Fourth Proportional to 358,824.50, 495,200.49 and 197,679.86

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Solution

The fourth proportional to 358,824.50, 495,200.49 and 197,679.86 is: 272,810.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,824.50 : 495,200.49 = 197,679.86 : x
  2. Step 2: Convert to fraction form
    358,824.50/495,200.49 = 197,679.86/x
  3. Step 3: Cross multiply
    358,824.50x = 495,200.49 × 197,679.86
  4. Step 4: Simplify right side
    358,824.50x = 97,891,163,535.13
  5. Step 5: Solve for x
    x = 97,891,163,535.13/358,824.50
  6. Step 6: Final answer
    x = 272,810.70

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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.