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Finding the Fourth Proportional to 202,365.50, 279,004.79 and 165,932.72

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Solution

The fourth proportional to 202,365.50, 279,004.79 and 165,932.72 is: 228,774.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,365.50 : 279,004.79 = 165,932.72 : x
  2. Step 2: Convert to fraction form
    202,365.50/279,004.79 = 165,932.72/x
  3. Step 3: Cross multiply
    202,365.50x = 279,004.79 × 165,932.72
  4. Step 4: Simplify right side
    202,365.50x = 46,296,021,473.04
  5. Step 5: Solve for x
    x = 46,296,021,473.04/202,365.50
  6. Step 6: Final answer
    x = 228,774.28

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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.