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Finding the Fourth Proportional to 70,463.28, 97,269.84 and 42,163.68

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Solution

The fourth proportional to 70,463.28, 97,269.84 and 42,163.68 is: 58,204.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,463.28 : 97,269.84 = 42,163.68 : x
  2. Step 2: Convert to fraction form
    70,463.28/97,269.84 = 42,163.68/x
  3. Step 3: Cross multiply
    70,463.28x = 97,269.84 × 42,163.68
  4. Step 4: Simplify right side
    70,463.28x = 4,101,254,407.41
  5. Step 5: Solve for x
    x = 4,101,254,407.41/70,463.28
  6. Step 6: Final answer
    x = 58,204.14

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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.