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Finding the Fourth Proportional to 351,359.92, 527,030.31 and 98,642.50

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Solution

The fourth proportional to 351,359.92, 527,030.31 and 98,642.50 is: 147,961.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,359.92 : 527,030.31 = 98,642.50 : x
  2. Step 2: Convert to fraction form
    351,359.92/527,030.31 = 98,642.50/x
  3. Step 3: Cross multiply
    351,359.92x = 527,030.31 × 98,642.50
  4. Step 4: Simplify right side
    351,359.92x = 51,987,586,860.96
  5. Step 5: Solve for x
    x = 51,987,586,860.96/351,359.92
  6. Step 6: Final answer
    x = 147,961.06

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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.