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Finding the Fourth Proportional to 202,443.84, 279,376.92 and 111,799.62

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Solution

The fourth proportional to 202,443.84, 279,376.92 and 111,799.62 is: 154,285.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,443.84 : 279,376.92 = 111,799.62 : x
  2. Step 2: Convert to fraction form
    202,443.84/279,376.92 = 111,799.62/x
  3. Step 3: Cross multiply
    202,443.84x = 279,376.92 × 111,799.62
  4. Step 4: Simplify right side
    202,443.84x = 31,234,233,492.77
  5. Step 5: Solve for x
    x = 31,234,233,492.77/202,443.84
  6. Step 6: Final answer
    x = 154,285.92

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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.