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Finding the Fourth Proportional to 353,152.19, 487,359.84 and 192,018.29

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Solution

The fourth proportional to 353,152.19, 487,359.84 and 192,018.29 is: 264,990.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,152.19 : 487,359.84 = 192,018.29 : x
  2. Step 2: Convert to fraction form
    353,152.19/487,359.84 = 192,018.29/x
  3. Step 3: Cross multiply
    353,152.19x = 487,359.84 × 192,018.29
  4. Step 4: Simplify right side
    353,152.19x = 93,582,000,654.67
  5. Step 5: Solve for x
    x = 93,582,000,654.67/353,152.19
  6. Step 6: Final answer
    x = 264,990.58

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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.