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Finding the Fourth Proportional to 202,702.54, 279,727.68 and 112,060.81

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Solution

The fourth proportional to 202,702.54, 279,727.68 and 112,060.81 is: 154,642.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,702.54 : 279,727.68 = 112,060.81 : x
  2. Step 2: Convert to fraction form
    202,702.54/279,727.68 = 112,060.81/x
  3. Step 3: Cross multiply
    202,702.54x = 279,727.68 × 112,060.81
  4. Step 4: Simplify right side
    202,702.54x = 31,346,510,400.22
  5. Step 5: Solve for x
    x = 31,346,510,400.22/202,702.54
  6. Step 6: Final answer
    x = 154,642.91

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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.