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Finding the Fourth Proportional to 351,359.79, 527,030.12 and 98,642.37

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Solution

The fourth proportional to 351,359.79, 527,030.12 and 98,642.37 is: 147,960.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,359.79 : 527,030.12 = 98,642.37 : x
  2. Step 2: Convert to fraction form
    351,359.79/527,030.12 = 98,642.37/x
  3. Step 3: Cross multiply
    351,359.79x = 527,030.12 × 98,642.37
  4. Step 4: Simplify right side
    351,359.79x = 51,987,499,604.97
  5. Step 5: Solve for x
    x = 51,987,499,604.97/351,359.79
  6. Step 6: Final answer
    x = 147,960.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.