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Finding the Fourth Proportional to 202,376.07, 279,277.67 and 111,737.68

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Solution

The fourth proportional to 202,376.07, 279,277.67 and 111,737.68 is: 154,197.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,376.07 : 279,277.67 = 111,737.68 : x
  2. Step 2: Convert to fraction form
    202,376.07/279,277.67 = 111,737.68/x
  3. Step 3: Cross multiply
    202,376.07x = 279,277.67 × 111,737.68
  4. Step 4: Simplify right side
    202,376.07x = 31,205,838,502.76
  5. Step 5: Solve for x
    x = 31,205,838,502.76/202,376.07
  6. Step 6: Final answer
    x = 154,197.27

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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.