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Finding the Fourth Proportional to 92,664, 138,997.22 and 30,334.50

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Solution

The fourth proportional to 92,664, 138,997.22 and 30,334.50 is: 45,502.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,664 : 138,997.22 = 30,334.50 : x
  2. Step 2: Convert to fraction form
    92,664/138,997.22 = 30,334.50/x
  3. Step 3: Cross multiply
    92,664x = 138,997.22 × 30,334.50
  4. Step 4: Simplify right side
    92,664x = 4,216,411,018.42
  5. Step 5: Solve for x
    x = 4,216,411,018.42/92,664
  6. Step 6: Final answer
    x = 45,502.15

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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.