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Finding the Fourth Proportional to 121,131.54, 181,683.54 and 32,392.80

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Solution

The fourth proportional to 121,131.54, 181,683.54 and 32,392.80 is: 48,585.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,131.54 : 181,683.54 = 32,392.80 : x
  2. Step 2: Convert to fraction form
    121,131.54/181,683.54 = 32,392.80/x
  3. Step 3: Cross multiply
    121,131.54x = 181,683.54 × 32,392.80
  4. Step 4: Simplify right side
    121,131.54x = 5,885,238,574.51
  5. Step 5: Solve for x
    x = 5,885,238,574.51/121,131.54
  6. Step 6: Final answer
    x = 48,585.52

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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.