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Finding the Fourth Proportional to 65,018.88, 97,565.04 and 40,119.84

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Solution

The fourth proportional to 65,018.88, 97,565.04 and 40,119.84 is: 60,202.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,018.88 : 97,565.04 = 40,119.84 : x
  2. Step 2: Convert to fraction form
    65,018.88/97,565.04 = 40,119.84/x
  3. Step 3: Cross multiply
    65,018.88x = 97,565.04 × 40,119.84
  4. Step 4: Simplify right side
    65,018.88x = 3,914,293,794.39
  5. Step 5: Solve for x
    x = 3,914,293,794.39/65,018.88
  6. Step 6: Final answer
    x = 60,202.42

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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.