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Finding the Fourth Proportional to 203,612.74, 280,998.86 and 117,575.35

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Solution

The fourth proportional to 203,612.74, 280,998.86 and 117,575.35 is: 162,261.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,612.74 : 280,998.86 = 117,575.35 : x
  2. Step 2: Convert to fraction form
    203,612.74/280,998.86 = 117,575.35/x
  3. Step 3: Cross multiply
    203,612.74x = 280,998.86 × 117,575.35
  4. Step 4: Simplify right side
    203,612.74x = 33,038,538,023.73
  5. Step 5: Solve for x
    x = 33,038,538,023.73/203,612.74
  6. Step 6: Final answer
    x = 162,261.65

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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.