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Finding the Fourth Proportional to 121,133.26, 181,700.16 and 36,893.80

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Solution

The fourth proportional to 121,133.26, 181,700.16 and 36,893.80 is: 55,340.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,133.26 : 181,700.16 = 36,893.80 : x
  2. Step 2: Convert to fraction form
    121,133.26/181,700.16 = 36,893.80/x
  3. Step 3: Cross multiply
    121,133.26x = 181,700.16 × 36,893.80
  4. Step 4: Simplify right side
    121,133.26x = 6,703,609,363.01
  5. Step 5: Solve for x
    x = 6,703,609,363.01/121,133.26
  6. Step 6: Final answer
    x = 55,340.78

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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.