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Finding the Fourth Proportional to 201,945.71, 302,772.76 and 61,627.79

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Solution

The fourth proportional to 201,945.71, 302,772.76 and 61,627.79 is: 92,397.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,945.71 : 302,772.76 = 61,627.79 : x
  2. Step 2: Convert to fraction form
    201,945.71/302,772.76 = 61,627.79/x
  3. Step 3: Cross multiply
    201,945.71x = 302,772.76 × 61,627.79
  4. Step 4: Simplify right side
    201,945.71x = 18,659,216,071.00
  5. Step 5: Solve for x
    x = 18,659,216,071.00/201,945.71
  6. Step 6: Final answer
    x = 92,397.19

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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.