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Finding the Fourth Proportional to 201,508.90, 302,280.27 and 61,268.74

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Solution

The fourth proportional to 201,508.90, 302,280.27 and 61,268.74 is: 91,908.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,508.90 : 302,280.27 = 61,268.74 : x
  2. Step 2: Convert to fraction form
    201,508.90/302,280.27 = 61,268.74/x
  3. Step 3: Cross multiply
    201,508.90x = 302,280.27 × 61,268.74
  4. Step 4: Simplify right side
    201,508.90x = 18,520,331,269.76
  5. Step 5: Solve for x
    x = 18,520,331,269.76/201,508.90
  6. Step 6: Final answer
    x = 91,908.25

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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.