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Finding the Fourth Proportional to 68,967.44, 95,186.16 and 64,465

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Solution

The fourth proportional to 68,967.44, 95,186.16 and 64,465 is: 88,972.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,967.44 : 95,186.16 = 64,465 : x
  2. Step 2: Convert to fraction form
    68,967.44/95,186.16 = 64,465/x
  3. Step 3: Cross multiply
    68,967.44x = 95,186.16 × 64,465
  4. Step 4: Simplify right side
    68,967.44x = 6,136,175,804.40
  5. Step 5: Solve for x
    x = 6,136,175,804.40/68,967.44
  6. Step 6: Final answer
    x = 88,972.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.