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Finding the Fourth Proportional to 70,370.91, 97,087.73 and 40,134.49

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Solution

The fourth proportional to 70,370.91, 97,087.73 and 40,134.49 is: 55,371.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,370.91 : 97,087.73 = 40,134.49 : x
  2. Step 2: Convert to fraction form
    70,370.91/97,087.73 = 40,134.49/x
  3. Step 3: Cross multiply
    70,370.91x = 97,087.73 × 40,134.49
  4. Step 4: Simplify right side
    70,370.91x = 3,896,566,085.42
  5. Step 5: Solve for x
    x = 3,896,566,085.42/70,370.91
  6. Step 6: Final answer
    x = 55,371.83

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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.