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Finding the Fourth Proportional to 265,883.88, 366,920.90 and 145,027.76

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Solution

The fourth proportional to 265,883.88, 366,920.90 and 145,027.76 is: 200,138.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,883.88 : 366,920.90 = 145,027.76 : x
  2. Step 2: Convert to fraction form
    265,883.88/366,920.90 = 145,027.76/x
  3. Step 3: Cross multiply
    265,883.88x = 366,920.90 × 145,027.76
  4. Step 4: Simplify right side
    265,883.88x = 53,213,716,224.18
  5. Step 5: Solve for x
    x = 53,213,716,224.18/265,883.88
  6. Step 6: Final answer
    x = 200,138.93

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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.