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Finding the Fourth Proportional to 70,726.28, 97,594.88 and 40,512.87

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Solution

The fourth proportional to 70,726.28, 97,594.88 and 40,512.87 is: 55,903.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,726.28 : 97,594.88 = 40,512.87 : x
  2. Step 2: Convert to fraction form
    70,726.28/97,594.88 = 40,512.87/x
  3. Step 3: Cross multiply
    70,726.28x = 97,594.88 × 40,512.87
  4. Step 4: Simplify right side
    70,726.28x = 3,953,848,483.54
  5. Step 5: Solve for x
    x = 3,953,848,483.54/70,726.28
  6. Step 6: Final answer
    x = 55,903.53

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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.