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Finding the Fourth Proportional to 236,023.60, 353,986.20 and 86,334.40

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Solution

The fourth proportional to 236,023.60, 353,986.20 and 86,334.40 is: 129,483.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,023.60 : 353,986.20 = 86,334.40 : x
  2. Step 2: Convert to fraction form
    236,023.60/353,986.20 = 86,334.40/x
  3. Step 3: Cross multiply
    236,023.60x = 353,986.20 × 86,334.40
  4. Step 4: Simplify right side
    236,023.60x = 30,561,186,185.28
  5. Step 5: Solve for x
    x = 30,561,186,185.28/236,023.60
  6. Step 6: Final answer
    x = 129,483.60

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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.