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Finding the Fourth Proportional to 358,726.92, 495,065.61 and 197,581.90

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Solution

The fourth proportional to 358,726.92, 495,065.61 and 197,581.90 is: 272,675.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,726.92 : 495,065.61 = 197,581.90 : x
  2. Step 2: Convert to fraction form
    358,726.92/495,065.61 = 197,581.90/x
  3. Step 3: Cross multiply
    358,726.92x = 495,065.61 × 197,581.90
  4. Step 4: Simplify right side
    358,726.92x = 97,816,000,385.22
  5. Step 5: Solve for x
    x = 97,816,000,385.22/358,726.92
  6. Step 6: Final answer
    x = 272,675.38

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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.