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Finding the Fourth Proportional to 202,317.44, 279,203.84 and 111,678.72

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Solution

The fourth proportional to 202,317.44, 279,203.84 and 111,678.72 is: 154,119.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,317.44 : 279,203.84 = 111,678.72 : x
  2. Step 2: Convert to fraction form
    202,317.44/279,203.84 = 111,678.72/x
  3. Step 3: Cross multiply
    202,317.44x = 279,203.84 × 111,678.72
  4. Step 4: Simplify right side
    202,317.44x = 31,181,127,470.28
  5. Step 5: Solve for x
    x = 31,181,127,470.28/202,317.44
  6. Step 6: Final answer
    x = 154,119.82

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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.