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Finding the Fourth Proportional to 201,068.57, 277,582.35 and 155,027.66

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Solution

The fourth proportional to 201,068.57, 277,582.35 and 155,027.66 is: 214,021.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,068.57 : 277,582.35 = 155,027.66 : x
  2. Step 2: Convert to fraction form
    201,068.57/277,582.35 = 155,027.66/x
  3. Step 3: Cross multiply
    201,068.57x = 277,582.35 × 155,027.66
  4. Step 4: Simplify right side
    201,068.57x = 43,032,940,789.89
  5. Step 5: Solve for x
    x = 43,032,940,789.89/201,068.57
  6. Step 6: Final answer
    x = 214,021.23

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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.