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Finding the Fourth Proportional to 202,321.68, 279,203.93 and 111,677.67

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Solution

The fourth proportional to 202,321.68, 279,203.93 and 111,677.67 is: 154,115.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,321.68 : 279,203.93 = 111,677.67 : x
  2. Step 2: Convert to fraction form
    202,321.68/279,203.93 = 111,677.67/x
  3. Step 3: Cross multiply
    202,321.68x = 279,203.93 × 111,677.67
  4. Step 4: Simplify right side
    202,321.68x = 31,180,842,961.22
  5. Step 5: Solve for x
    x = 31,180,842,961.22/202,321.68
  6. Step 6: Final answer
    x = 154,115.18

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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.