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Finding the Fourth Proportional to 70,726.56, 97,499.92 and 49,439.84

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Solution

The fourth proportional to 70,726.56, 97,499.92 and 49,439.84 is: 68,155.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,726.56 : 97,499.92 = 49,439.84 : x
  2. Step 2: Convert to fraction form
    70,726.56/97,499.92 = 49,439.84/x
  3. Step 3: Cross multiply
    70,726.56x = 97,499.92 × 49,439.84
  4. Step 4: Simplify right side
    70,726.56x = 4,820,380,444.81
  5. Step 5: Solve for x
    x = 4,820,380,444.81/70,726.56
  6. Step 6: Final answer
    x = 68,155.17

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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.