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Finding the Fourth Proportional to 70,265.51, 96,968.70 and 38,434.43

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Solution

The fourth proportional to 70,265.51, 96,968.70 and 38,434.43 is: 53,040.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,265.51 : 96,968.70 = 38,434.43 : x
  2. Step 2: Convert to fraction form
    70,265.51/96,968.70 = 38,434.43/x
  3. Step 3: Cross multiply
    70,265.51x = 96,968.70 × 38,434.43
  4. Step 4: Simplify right side
    70,265.51x = 3,726,936,227.50
  5. Step 5: Solve for x
    x = 3,726,936,227.50/70,265.51
  6. Step 6: Final answer
    x = 53,040.77

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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.