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Finding the Fourth Proportional to 121,194.78, 181,800.48 and 41,200.20

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Solution

The fourth proportional to 121,194.78, 181,800.48 and 41,200.20 is: 61,803.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,194.78 : 181,800.48 = 41,200.20 : x
  2. Step 2: Convert to fraction form
    121,194.78/181,800.48 = 41,200.20/x
  3. Step 3: Cross multiply
    121,194.78x = 181,800.48 × 41,200.20
  4. Step 4: Simplify right side
    121,194.78x = 7,490,216,136.10
  5. Step 5: Solve for x
    x = 7,490,216,136.10/121,194.78
  6. Step 6: Final answer
    x = 61,803.12

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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.