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Finding the Fourth Proportional to 208,792.58, 288,134.51 and 113,299.27

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Solution

The fourth proportional to 208,792.58, 288,134.51 and 113,299.27 is: 156,353.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,792.58 : 288,134.51 = 113,299.27 : x
  2. Step 2: Convert to fraction form
    208,792.58/288,134.51 = 113,299.27/x
  3. Step 3: Cross multiply
    208,792.58x = 288,134.51 × 113,299.27
  4. Step 4: Simplify right side
    208,792.58x = 32,645,428,357.98
  5. Step 5: Solve for x
    x = 32,645,428,357.98/208,792.58
  6. Step 6: Final answer
    x = 156,353.40

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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.