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Finding the Fourth Proportional to 143,194.80, 214,727.40 and 64,268.40

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Solution

The fourth proportional to 143,194.80, 214,727.40 and 64,268.40 is: 96,373.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,194.80 : 214,727.40 = 64,268.40 : x
  2. Step 2: Convert to fraction form
    143,194.80/214,727.40 = 64,268.40/x
  3. Step 3: Cross multiply
    143,194.80x = 214,727.40 × 64,268.40
  4. Step 4: Simplify right side
    143,194.80x = 13,800,186,434.16
  5. Step 5: Solve for x
    x = 13,800,186,434.16/143,194.80
  6. Step 6: Final answer
    x = 96,373.52

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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.