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Finding the Fourth Proportional to 265,883.89, 366,920.91 and 145,027.77

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Solution

The fourth proportional to 265,883.89, 366,920.91 and 145,027.77 is: 200,138.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,883.89 : 366,920.91 = 145,027.77 : x
  2. Step 2: Convert to fraction form
    265,883.89/366,920.91 = 145,027.77/x
  3. Step 3: Cross multiply
    265,883.89x = 366,920.91 × 145,027.77
  4. Step 4: Simplify right side
    265,883.89x = 53,213,721,343.67
  5. Step 5: Solve for x
    x = 53,213,721,343.67/265,883.89
  6. Step 6: Final answer
    x = 200,138.95

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1.5x scale

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.