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Finding the Fourth Proportional to 236,616.56, 354,801.12 and 86,818.40

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Solution

The fourth proportional to 236,616.56, 354,801.12 and 86,818.40 is: 130,182.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,616.56 : 354,801.12 = 86,818.40 : x
  2. Step 2: Convert to fraction form
    236,616.56/354,801.12 = 86,818.40/x
  3. Step 3: Cross multiply
    236,616.56x = 354,801.12 × 86,818.40
  4. Step 4: Simplify right side
    236,616.56x = 30,803,265,556.61
  5. Step 5: Solve for x
    x = 30,803,265,556.61/236,616.56
  6. Step 6: Final answer
    x = 130,182.21

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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.