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Finding the Fourth Proportional to 70,975.84, 97,952.40 and 39,147.52

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Solution

The fourth proportional to 70,975.84, 97,952.40 and 39,147.52 is: 54,026.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,975.84 : 97,952.40 = 39,147.52 : x
  2. Step 2: Convert to fraction form
    70,975.84/97,952.40 = 39,147.52/x
  3. Step 3: Cross multiply
    70,975.84x = 97,952.40 × 39,147.52
  4. Step 4: Simplify right side
    70,975.84x = 3,834,593,538.05
  5. Step 5: Solve for x
    x = 3,834,593,538.05/70,975.84
  6. Step 6: Final answer
    x = 54,026.74

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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.