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Finding the Fourth Proportional to 202,522.13, 279,479.64 and 111,878.14

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Solution

The fourth proportional to 202,522.13, 279,479.64 and 111,878.14 is: 154,391.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,522.13 : 279,479.64 = 111,878.14 : x
  2. Step 2: Convert to fraction form
    202,522.13/279,479.64 = 111,878.14/x
  3. Step 3: Cross multiply
    202,522.13x = 279,479.64 × 111,878.14
  4. Step 4: Simplify right side
    202,522.13x = 31,267,660,893.67
  5. Step 5: Solve for x
    x = 31,267,660,893.67/202,522.13
  6. Step 6: Final answer
    x = 154,391.33

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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.