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Finding the Fourth Proportional to 201,451.89, 278,098.68 and 127,901.26

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Solution

The fourth proportional to 201,451.89, 278,098.68 and 127,901.26 is: 176,564.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,451.89 : 278,098.68 = 127,901.26 : x
  2. Step 2: Convert to fraction form
    201,451.89/278,098.68 = 127,901.26/x
  3. Step 3: Cross multiply
    201,451.89x = 278,098.68 × 127,901.26
  4. Step 4: Simplify right side
    201,451.89x = 35,569,171,576.34
  5. Step 5: Solve for x
    x = 35,569,171,576.34/201,451.89
  6. Step 6: Final answer
    x = 176,564.10

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1.5x scale

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.