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Finding the Fourth Proportional to 70,502.98, 97,292.36 and 40,286.38

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Solution

The fourth proportional to 70,502.98, 97,292.36 and 40,286.38 is: 55,594.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,502.98 : 97,292.36 = 40,286.38 : x
  2. Step 2: Convert to fraction form
    70,502.98/97,292.36 = 40,286.38/x
  3. Step 3: Cross multiply
    70,502.98x = 97,292.36 × 40,286.38
  4. Step 4: Simplify right side
    70,502.98x = 3,919,556,986.06
  5. Step 5: Solve for x
    x = 3,919,556,986.06/70,502.98
  6. Step 6: Final answer
    x = 55,594.20

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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.