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Finding the Fourth Proportional to 68,875.52, 103,214.72 and 39,232.16

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Solution

The fourth proportional to 68,875.52, 103,214.72 and 39,232.16 is: 58,792.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,875.52 : 103,214.72 = 39,232.16 : x
  2. Step 2: Convert to fraction form
    68,875.52/103,214.72 = 39,232.16/x
  3. Step 3: Cross multiply
    68,875.52x = 103,214.72 × 39,232.16
  4. Step 4: Simplify right side
    68,875.52x = 4,049,335,697.16
  5. Step 5: Solve for x
    x = 4,049,335,697.16/68,875.52
  6. Step 6: Final answer
    x = 58,792.09

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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.