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Finding the Fourth Proportional to 201,551.76, 302,344.38 and 61,311.60

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Solution

The fourth proportional to 201,551.76, 302,344.38 and 61,311.60 is: 91,972.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,551.76 : 302,344.38 = 61,311.60 : x
  2. Step 2: Convert to fraction form
    201,551.76/302,344.38 = 61,311.60/x
  3. Step 3: Cross multiply
    201,551.76x = 302,344.38 × 61,311.60
  4. Step 4: Simplify right side
    201,551.76x = 18,537,217,688.81
  5. Step 5: Solve for x
    x = 18,537,217,688.81/201,551.76
  6. Step 6: Final answer
    x = 91,972.49

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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.