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Finding the Fourth Proportional to 60,809.40, 90,995.40 and 41,126.40

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Solution

The fourth proportional to 60,809.40, 90,995.40 and 41,126.40 is: 61,541.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,809.40 : 90,995.40 = 41,126.40 : x
  2. Step 2: Convert to fraction form
    60,809.40/90,995.40 = 41,126.40/x
  3. Step 3: Cross multiply
    60,809.40x = 90,995.40 × 41,126.40
  4. Step 4: Simplify right side
    60,809.40x = 3,742,313,218.56
  5. Step 5: Solve for x
    x = 3,742,313,218.56/60,809.40
  6. Step 6: Final answer
    x = 61,541.69

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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.