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Finding the Fourth Proportional to 201,005.92, 301,428.40 and 88,606.25

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Solution

The fourth proportional to 201,005.92, 301,428.40 and 88,606.25 is: 132,873.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,005.92 : 301,428.40 = 88,606.25 : x
  2. Step 2: Convert to fraction form
    201,005.92/301,428.40 = 88,606.25/x
  3. Step 3: Cross multiply
    201,005.92x = 301,428.40 × 88,606.25
  4. Step 4: Simplify right side
    201,005.92x = 26,708,439,648.00
  5. Step 5: Solve for x
    x = 26,708,439,648.00/201,005.92
  6. Step 6: Final answer
    x = 132,873.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.