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Finding the Fourth Proportional to 201,636.64, 277,792.72 and 144,949.92

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Solution

The fourth proportional to 201,636.64, 277,792.72 and 144,949.92 is: 199,696.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,636.64 : 277,792.72 = 144,949.92 : x
  2. Step 2: Convert to fraction form
    201,636.64/277,792.72 = 144,949.92/x
  3. Step 3: Cross multiply
    201,636.64x = 277,792.72 × 144,949.92
  4. Step 4: Simplify right side
    201,636.64x = 40,266,032,540.58
  5. Step 5: Solve for x
    x = 40,266,032,540.58/201,636.64
  6. Step 6: Final answer
    x = 199,696.01

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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.