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Finding the Fourth Proportional to 236,022.60, 353,984.70 and 86,333.40

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Solution

The fourth proportional to 236,022.60, 353,984.70 and 86,333.40 is: 129,482.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,022.60 : 353,984.70 = 86,333.40 : x
  2. Step 2: Convert to fraction form
    236,022.60/353,984.70 = 86,333.40/x
  3. Step 3: Cross multiply
    236,022.60x = 353,984.70 × 86,333.40
  4. Step 4: Simplify right side
    236,022.60x = 30,560,702,698.98
  5. Step 5: Solve for x
    x = 30,560,702,698.98/236,022.60
  6. Step 6: Final answer
    x = 129,482.10

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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.