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Finding the Fourth Proportional to 121,260.48, 181,896.48 and 38,160.96

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Solution

The fourth proportional to 121,260.48, 181,896.48 and 38,160.96 is: 57,243.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,260.48 : 181,896.48 = 38,160.96 : x
  2. Step 2: Convert to fraction form
    121,260.48/181,896.48 = 38,160.96/x
  3. Step 3: Cross multiply
    121,260.48x = 181,896.48 × 38,160.96
  4. Step 4: Simplify right side
    121,260.48x = 6,941,344,297.42
  5. Step 5: Solve for x
    x = 6,941,344,297.42/121,260.48
  6. Step 6: Final answer
    x = 57,243.25

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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.