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Finding the Fourth Proportional to 70,605.13, 97,410.71 and 45,126.41

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Solution

The fourth proportional to 70,605.13, 97,410.71 and 45,126.41 is: 62,258.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,605.13 : 97,410.71 = 45,126.41 : x
  2. Step 2: Convert to fraction form
    70,605.13/97,410.71 = 45,126.41/x
  3. Step 3: Cross multiply
    70,605.13x = 97,410.71 × 45,126.41
  4. Step 4: Simplify right side
    70,605.13x = 4,395,795,150.80
  5. Step 5: Solve for x
    x = 4,395,795,150.80/70,605.13
  6. Step 6: Final answer
    x = 62,258.87

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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.