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Finding the Fourth Proportional to 241,988.80, 363,091.20 and 84,330.40

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Solution

The fourth proportional to 241,988.80, 363,091.20 and 84,330.40 is: 126,533.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,988.80 : 363,091.20 = 84,330.40 : x
  2. Step 2: Convert to fraction form
    241,988.80/363,091.20 = 84,330.40/x
  3. Step 3: Cross multiply
    241,988.80x = 363,091.20 × 84,330.40
  4. Step 4: Simplify right side
    241,988.80x = 30,619,626,132.48
  5. Step 5: Solve for x
    x = 30,619,626,132.48/241,988.80
  6. Step 6: Final answer
    x = 126,533.24

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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.