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Finding the Fourth Proportional to 202,353.76, 279,233.85 and 111,695.17

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Solution

The fourth proportional to 202,353.76, 279,233.85 and 111,695.17 is: 154,131.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,353.76 : 279,233.85 = 111,695.17 : x
  2. Step 2: Convert to fraction form
    202,353.76/279,233.85 = 111,695.17/x
  3. Step 3: Cross multiply
    202,353.76x = 279,233.85 × 111,695.17
  4. Step 4: Simplify right side
    202,353.76x = 31,189,072,345.50
  5. Step 5: Solve for x
    x = 31,189,072,345.50/202,353.76
  6. Step 6: Final answer
    x = 154,131.42

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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.