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Finding the Fourth Proportional to 265,883.63, 366,920.55 and 145,027.51

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Solution

The fourth proportional to 265,883.63, 366,920.55 and 145,027.51 is: 200,138.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,883.63 : 366,920.55 = 145,027.51 : x
  2. Step 2: Convert to fraction form
    265,883.63/366,920.55 = 145,027.51/x
  3. Step 3: Cross multiply
    265,883.63x = 366,920.55 × 145,027.51
  4. Step 4: Simplify right side
    265,883.63x = 53,213,572,817.03
  5. Step 5: Solve for x
    x = 53,213,572,817.03/265,883.63
  6. Step 6: Final answer
    x = 200,138.59

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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.