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Finding the Fourth Proportional to 353,062.66, 487,232.14 and 191,918.02

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Solution

The fourth proportional to 353,062.66, 487,232.14 and 191,918.02 is: 264,849.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,062.66 : 487,232.14 = 191,918.02 : x
  2. Step 2: Convert to fraction form
    353,062.66/487,232.14 = 191,918.02/x
  3. Step 3: Cross multiply
    353,062.66x = 487,232.14 × 191,918.02
  4. Step 4: Simplify right side
    353,062.66x = 93,508,627,589.16
  5. Step 5: Solve for x
    x = 93,508,627,589.16/353,062.66
  6. Step 6: Final answer
    x = 264,849.95

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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.