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Finding the Fourth Proportional to 202,299.45, 279,267.71 and 117,400.11

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Solution

The fourth proportional to 202,299.45, 279,267.71 and 117,400.11 is: 162,066.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,299.45 : 279,267.71 = 117,400.11 : x
  2. Step 2: Convert to fraction form
    202,299.45/279,267.71 = 117,400.11/x
  3. Step 3: Cross multiply
    202,299.45x = 279,267.71 × 117,400.11
  4. Step 4: Simplify right side
    202,299.45x = 32,786,059,873.45
  5. Step 5: Solve for x
    x = 32,786,059,873.45/202,299.45
  6. Step 6: Final answer
    x = 162,066.97

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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.