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Finding the Fourth Proportional to 353,043.18, 487,202.52 and 191,898.20

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Solution

The fourth proportional to 353,043.18, 487,202.52 and 191,898.20 is: 264,821.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,043.18 : 487,202.52 = 191,898.20 : x
  2. Step 2: Convert to fraction form
    353,043.18/487,202.52 = 191,898.20/x
  3. Step 3: Cross multiply
    353,043.18x = 487,202.52 × 191,898.20
  4. Step 4: Simplify right side
    353,043.18x = 93,493,286,623.46
  5. Step 5: Solve for x
    x = 93,493,286,623.46/353,043.18
  6. Step 6: Final answer
    x = 264,821.11

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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.