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Finding the Fourth Proportional to 200,551.40, 276,766.50 and 111,127.40

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Solution

The fourth proportional to 200,551.40, 276,766.50 and 111,127.40 is: 153,358.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,551.40 : 276,766.50 = 111,127.40 : x
  2. Step 2: Convert to fraction form
    200,551.40/276,766.50 = 111,127.40/x
  3. Step 3: Cross multiply
    200,551.40x = 276,766.50 × 111,127.40
  4. Step 4: Simplify right side
    200,551.40x = 30,756,341,552.10
  5. Step 5: Solve for x
    x = 30,756,341,552.10/200,551.40
  6. Step 6: Final answer
    x = 153,358.90

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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.