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Finding the Fourth Proportional to 274,537.28, 411,801.60 and 87,547.52

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Solution

The fourth proportional to 274,537.28, 411,801.60 and 87,547.52 is: 131,319.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,537.28 : 411,801.60 = 87,547.52 : x
  2. Step 2: Convert to fraction form
    274,537.28/411,801.60 = 87,547.52/x
  3. Step 3: Cross multiply
    274,537.28x = 411,801.60 × 87,547.52
  4. Step 4: Simplify right side
    274,537.28x = 36,052,208,812.03
  5. Step 5: Solve for x
    x = 36,052,208,812.03/274,537.28
  6. Step 6: Final answer
    x = 131,319.90

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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.