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Finding the Fourth Proportional to 121,325.88, 181,865.64 and 46,426.80

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Solution

The fourth proportional to 121,325.88, 181,865.64 and 46,426.80 is: 69,593.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,325.88 : 181,865.64 = 46,426.80 : x
  2. Step 2: Convert to fraction form
    121,325.88/181,865.64 = 46,426.80/x
  3. Step 3: Cross multiply
    121,325.88x = 181,865.64 × 46,426.80
  4. Step 4: Simplify right side
    121,325.88x = 8,443,439,695.15
  5. Step 5: Solve for x
    x = 8,443,439,695.15/121,325.88
  6. Step 6: Final answer
    x = 69,593.06

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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.