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Finding the Fourth Proportional to 201,639.06, 302,458.59 and 61,398.90

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Solution

The fourth proportional to 201,639.06, 302,458.59 and 61,398.90 is: 92,098.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,639.06 : 302,458.59 = 61,398.90 : x
  2. Step 2: Convert to fraction form
    201,639.06/302,458.59 = 61,398.90/x
  3. Step 3: Cross multiply
    201,639.06x = 302,458.59 × 61,398.90
  4. Step 4: Simplify right side
    201,639.06x = 18,570,624,721.55
  5. Step 5: Solve for x
    x = 18,570,624,721.55/201,639.06
  6. Step 6: Final answer
    x = 92,098.35

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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.