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Finding the Fourth Proportional to 121,016.70, 181,525.05 and 61,832.70

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Solution

The fourth proportional to 121,016.70, 181,525.05 and 61,832.70 is: 92,749.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,016.70 : 181,525.05 = 61,832.70 : x
  2. Step 2: Convert to fraction form
    121,016.70/181,525.05 = 61,832.70/x
  3. Step 3: Cross multiply
    121,016.70x = 181,525.05 × 61,832.70
  4. Step 4: Simplify right side
    121,016.70x = 11,224,183,959.14
  5. Step 5: Solve for x
    x = 11,224,183,959.14/121,016.70
  6. Step 6: Final answer
    x = 92,749.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.