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Finding the Fourth Proportional to 201,059.91, 277,308.93 and 136,578.87

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Solution

The fourth proportional to 201,059.91, 277,308.93 and 136,578.87 is: 188,374.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,059.91 : 277,308.93 = 136,578.87 : x
  2. Step 2: Convert to fraction form
    201,059.91/277,308.93 = 136,578.87/x
  3. Step 3: Cross multiply
    201,059.91x = 277,308.93 × 136,578.87
  4. Step 4: Simplify right side
    201,059.91x = 37,874,538,913.76
  5. Step 5: Solve for x
    x = 37,874,538,913.76/201,059.91
  6. Step 6: Final answer
    x = 188,374.40

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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.