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Finding the Fourth Proportional to 166,886, 230,302.68 and 91,436.24

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Solution

The fourth proportional to 166,886, 230,302.68 and 91,436.24 is: 126,182.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,886 : 230,302.68 = 91,436.24 : x
  2. Step 2: Convert to fraction form
    166,886/230,302.68 = 91,436.24/x
  3. Step 3: Cross multiply
    166,886x = 230,302.68 × 91,436.24
  4. Step 4: Simplify right side
    166,886x = 21,058,011,121.12
  5. Step 5: Solve for x
    x = 21,058,011,121.12/166,886
  6. Step 6: Final answer
    x = 126,182.01

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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.