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Finding the Fourth Proportional to 200,718.81, 277,004.21 and 115,841.34

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Solution

The fourth proportional to 200,718.81, 277,004.21 and 115,841.34 is: 159,868.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,718.81 : 277,004.21 = 115,841.34 : x
  2. Step 2: Convert to fraction form
    200,718.81/277,004.21 = 115,841.34/x
  3. Step 3: Cross multiply
    200,718.81x = 277,004.21 × 115,841.34
  4. Step 4: Simplify right side
    200,718.81x = 32,088,538,292.83
  5. Step 5: Solve for x
    x = 32,088,538,292.83/200,718.81
  6. Step 6: Final answer
    x = 159,868.12

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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.