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Finding the Fourth Proportional to 201,639.34, 302,459.01 and 61,397.97

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Solution

The fourth proportional to 201,639.34, 302,459.01 and 61,397.97 is: 92,096.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,639.34 : 302,459.01 = 61,397.97 : x
  2. Step 2: Convert to fraction form
    201,639.34/302,459.01 = 61,397.97/x
  3. Step 3: Cross multiply
    201,639.34x = 302,459.01 × 61,397.97
  4. Step 4: Simplify right side
    201,639.34x = 18,570,369,222.21
  5. Step 5: Solve for x
    x = 18,570,369,222.21/201,639.34
  6. Step 6: Final answer
    x = 92,096.96

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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.