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Finding the Fourth Proportional to 209,334.78, 288,873.95 and 113,841.59

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Solution

The fourth proportional to 209,334.78, 288,873.95 and 113,841.59 is: 157,097.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,334.78 : 288,873.95 = 113,841.59 : x
  2. Step 2: Convert to fraction form
    209,334.78/288,873.95 = 113,841.59/x
  3. Step 3: Cross multiply
    209,334.78x = 288,873.95 × 113,841.59
  4. Step 4: Simplify right side
    209,334.78x = 32,885,867,764.00
  5. Step 5: Solve for x
    x = 32,885,867,764.00/209,334.78
  6. Step 6: Final answer
    x = 157,097.01

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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.