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Finding the Fourth Proportional to 95,087.71, 142,578.19 and 65,135.76

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Solution

The fourth proportional to 95,087.71, 142,578.19 and 65,135.76 is: 97,667.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,087.71 : 142,578.19 = 65,135.76 : x
  2. Step 2: Convert to fraction form
    95,087.71/142,578.19 = 65,135.76/x
  3. Step 3: Cross multiply
    95,087.71x = 142,578.19 × 65,135.76
  4. Step 4: Simplify right side
    95,087.71x = 9,286,938,765.07
  5. Step 5: Solve for x
    x = 9,286,938,765.07/95,087.71
  6. Step 6: Final answer
    x = 97,667.08

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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.