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Finding the Fourth Proportional to 113,728.81, 156,914.26 and 73,444.27

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Solution

The fourth proportional to 113,728.81, 156,914.26 and 73,444.27 is: 101,332.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,728.81 : 156,914.26 = 73,444.27 : x
  2. Step 2: Convert to fraction form
    113,728.81/156,914.26 = 73,444.27/x
  3. Step 3: Cross multiply
    113,728.81x = 156,914.26 × 73,444.27
  4. Step 4: Simplify right side
    113,728.81x = 11,524,453,278.29
  5. Step 5: Solve for x
    x = 11,524,453,278.29/113,728.81
  6. Step 6: Final answer
    x = 101,332.75

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1.5x scale

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.