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Finding the Fourth Proportional to 121,305.60, 181,958.40 and 95,936.40

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Solution

The fourth proportional to 121,305.60, 181,958.40 and 95,936.40 is: 143,904.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,305.60 : 181,958.40 = 95,936.40 : x
  2. Step 2: Convert to fraction form
    121,305.60/181,958.40 = 95,936.40/x
  3. Step 3: Cross multiply
    121,305.60x = 181,958.40 × 95,936.40
  4. Step 4: Simplify right side
    121,305.60x = 17,456,433,845.76
  5. Step 5: Solve for x
    x = 17,456,433,845.76/121,305.60
  6. Step 6: Final answer
    x = 143,904.60

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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.