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Finding the Fourth Proportional to 199,035.52, 274,672.47 and 112,992.28

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Solution

The fourth proportional to 199,035.52, 274,672.47 and 112,992.28 is: 155,931.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,035.52 : 274,672.47 = 112,992.28 : x
  2. Step 2: Convert to fraction form
    199,035.52/274,672.47 = 112,992.28/x
  3. Step 3: Cross multiply
    199,035.52x = 274,672.47 × 112,992.28
  4. Step 4: Simplify right side
    199,035.52x = 31,035,868,638.53
  5. Step 5: Solve for x
    x = 31,035,868,638.53/199,035.52
  6. Step 6: Final answer
    x = 155,931.31

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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.