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Finding the Fourth Proportional to 121,266.30, 181,899.45 and 116,600.70

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Solution

The fourth proportional to 121,266.30, 181,899.45 and 116,600.70 is: 174,901.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,266.30 : 181,899.45 = 116,600.70 : x
  2. Step 2: Convert to fraction form
    121,266.30/181,899.45 = 116,600.70/x
  3. Step 3: Cross multiply
    121,266.30x = 181,899.45 × 116,600.70
  4. Step 4: Simplify right side
    121,266.30x = 21,209,603,199.62
  5. Step 5: Solve for x
    x = 21,209,603,199.62/121,266.30
  6. Step 6: Final answer
    x = 174,901.05

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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.