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Finding the Fourth Proportional to 147,107.40, 220,663.26 and 36,299.40

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Solution

The fourth proportional to 147,107.40, 220,663.26 and 36,299.40 is: 54,449.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,107.40 : 220,663.26 = 36,299.40 : x
  2. Step 2: Convert to fraction form
    147,107.40/220,663.26 = 36,299.40/x
  3. Step 3: Cross multiply
    147,107.40x = 220,663.26 × 36,299.40
  4. Step 4: Simplify right side
    147,107.40x = 8,009,943,940.04
  5. Step 5: Solve for x
    x = 8,009,943,940.04/147,107.40
  6. Step 6: Final answer
    x = 54,449.63

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1.5x scale

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.