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Finding the Fourth Proportional to 70,167.81, 96,838.16 and 38,341.43

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Solution

The fourth proportional to 70,167.81, 96,838.16 and 38,341.43 is: 52,914.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,167.81 : 96,838.16 = 38,341.43 : x
  2. Step 2: Convert to fraction form
    70,167.81/96,838.16 = 38,341.43/x
  3. Step 3: Cross multiply
    70,167.81x = 96,838.16 × 38,341.43
  4. Step 4: Simplify right side
    70,167.81x = 3,712,912,857.07
  5. Step 5: Solve for x
    x = 3,712,912,857.07/70,167.81
  6. Step 6: Final answer
    x = 52,914.76

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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.