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Finding the Fourth Proportional to 113,713.52, 156,975.09 and 73,446.92

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Solution

The fourth proportional to 113,713.52, 156,975.09 and 73,446.92 is: 101,389.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,713.52 : 156,975.09 = 73,446.92 : x
  2. Step 2: Convert to fraction form
    113,713.52/156,975.09 = 73,446.92/x
  3. Step 3: Cross multiply
    113,713.52x = 156,975.09 × 73,446.92
  4. Step 4: Simplify right side
    113,713.52x = 11,529,336,877.22
  5. Step 5: Solve for x
    x = 11,529,336,877.22/113,713.52
  6. Step 6: Final answer
    x = 101,389.32

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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.