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Finding the Fourth Proportional to 202,519.05, 279,478.61 and 111,873.12

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Solution

The fourth proportional to 202,519.05, 279,478.61 and 111,873.12 is: 154,386.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,519.05 : 279,478.61 = 111,873.12 : x
  2. Step 2: Convert to fraction form
    202,519.05/279,478.61 = 111,873.12/x
  3. Step 3: Cross multiply
    202,519.05x = 279,478.61 × 111,873.12
  4. Step 4: Simplify right side
    202,519.05x = 31,266,144,073.96
  5. Step 5: Solve for x
    x = 31,266,144,073.96/202,519.05
  6. Step 6: Final answer
    x = 154,386.19

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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.