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Finding the Fourth Proportional to 208,881.66, 288,107.68 and 191,709.46

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Solution

The fourth proportional to 208,881.66, 288,107.68 and 191,709.46 is: 264,422.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,881.66 : 288,107.68 = 191,709.46 : x
  2. Step 2: Convert to fraction form
    208,881.66/288,107.68 = 191,709.46/x
  3. Step 3: Cross multiply
    208,881.66x = 288,107.68 × 191,709.46
  4. Step 4: Simplify right side
    208,881.66x = 55,232,967,754.65
  5. Step 5: Solve for x
    x = 55,232,967,754.65/208,881.66
  6. Step 6: Final answer
    x = 264,422.29

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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.