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Finding the Fourth Proportional to 200,752.92, 277,038.63 and 115,869.96

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Solution

The fourth proportional to 200,752.92, 277,038.63 and 115,869.96 is: 159,900.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,752.92 : 277,038.63 = 115,869.96 : x
  2. Step 2: Convert to fraction form
    200,752.92/277,038.63 = 115,869.96/x
  3. Step 3: Cross multiply
    200,752.92x = 277,038.63 × 115,869.96
  4. Step 4: Simplify right side
    200,752.92x = 32,100,454,976.55
  5. Step 5: Solve for x
    x = 32,100,454,976.55/200,752.92
  6. Step 6: Final answer
    x = 159,900.31

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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.