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Finding the Fourth Proportional to 265,686.12, 366,648.48 and 158,260.68

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Solution

The fourth proportional to 265,686.12, 366,648.48 and 158,260.68 is: 218,400.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,686.12 : 366,648.48 = 158,260.68 : x
  2. Step 2: Convert to fraction form
    265,686.12/366,648.48 = 158,260.68/x
  3. Step 3: Cross multiply
    265,686.12x = 366,648.48 × 158,260.68
  4. Step 4: Simplify right side
    265,686.12x = 58,026,037,765.77
  5. Step 5: Solve for x
    x = 58,026,037,765.77/265,686.12
  6. Step 6: Final answer
    x = 218,400.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.