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Finding the Fourth Proportional to 70,954.16, 97,919.07 and 40,744.86

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Solution

The fourth proportional to 70,954.16, 97,919.07 and 40,744.86 is: 56,229.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,954.16 : 97,919.07 = 40,744.86 : x
  2. Step 2: Convert to fraction form
    70,954.16/97,919.07 = 40,744.86/x
  3. Step 3: Cross multiply
    70,954.16x = 97,919.07 × 40,744.86
  4. Step 4: Simplify right side
    70,954.16x = 3,989,698,798.48
  5. Step 5: Solve for x
    x = 3,989,698,798.48/70,954.16
  6. Step 6: Final answer
    x = 56,229.25

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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.