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Finding the Fourth Proportional to 121,995.78, 183,008.43 and 43,093.86

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Solution

The fourth proportional to 121,995.78, 183,008.43 and 43,093.86 is: 64,646.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,995.78 : 183,008.43 = 43,093.86 : x
  2. Step 2: Convert to fraction form
    121,995.78/183,008.43 = 43,093.86/x
  3. Step 3: Cross multiply
    121,995.78x = 183,008.43 × 43,093.86
  4. Step 4: Simplify right side
    121,995.78x = 7,886,539,661.24
  5. Step 5: Solve for x
    x = 7,886,539,661.24/121,995.78
  6. Step 6: Final answer
    x = 64,646.00

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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.