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Finding the Fourth Proportional to 209,267.42, 288,787.62 and 113,774.12

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Solution

The fourth proportional to 209,267.42, 288,787.62 and 113,774.12 is: 157,007.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,267.42 : 288,787.62 = 113,774.12 : x
  2. Step 2: Convert to fraction form
    209,267.42/288,787.62 = 113,774.12/x
  3. Step 3: Cross multiply
    209,267.42x = 288,787.62 × 113,774.12
  4. Step 4: Simplify right side
    209,267.42x = 32,856,557,332.39
  5. Step 5: Solve for x
    x = 32,856,557,332.39/209,267.42
  6. Step 6: Final answer
    x = 157,007.51

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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.