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Finding the Fourth Proportional to 202,707.54, 279,734.58 and 112,065.81

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Solution

The fourth proportional to 202,707.54, 279,734.58 and 112,065.81 is: 154,649.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,707.54 : 279,734.58 = 112,065.81 : x
  2. Step 2: Convert to fraction form
    202,707.54/279,734.58 = 112,065.81/x
  3. Step 3: Cross multiply
    202,707.54x = 279,734.58 × 112,065.81
  4. Step 4: Simplify right side
    202,707.54x = 31,348,682,292.71
  5. Step 5: Solve for x
    x = 31,348,682,292.71/202,707.54
  6. Step 6: Final answer
    x = 154,649.81

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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.