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Finding the Fourth Proportional to 92,607.91, 138,921.16 and 25,141.08

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Solution

The fourth proportional to 92,607.91, 138,921.16 and 25,141.08 is: 37,714.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,607.91 : 138,921.16 = 25,141.08 : x
  2. Step 2: Convert to fraction form
    92,607.91/138,921.16 = 25,141.08/x
  3. Step 3: Cross multiply
    92,607.91x = 138,921.16 × 25,141.08
  4. Step 4: Simplify right side
    92,607.91x = 3,492,627,997.25
  5. Step 5: Solve for x
    x = 3,492,627,997.25/92,607.91
  6. Step 6: Final answer
    x = 37,714.14

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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.