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Finding the Fourth Proportional to 121,663.91, 182,513.23 and 37,431.10

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Solution

The fourth proportional to 121,663.91, 182,513.23 and 37,431.10 is: 56,151.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,663.91 : 182,513.23 = 37,431.10 : x
  2. Step 2: Convert to fraction form
    121,663.91/182,513.23 = 37,431.10/x
  3. Step 3: Cross multiply
    121,663.91x = 182,513.23 × 37,431.10
  4. Step 4: Simplify right side
    121,663.91x = 6,831,670,963.45
  5. Step 5: Solve for x
    x = 6,831,670,963.45/121,663.91
  6. Step 6: Final answer
    x = 56,151.99

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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.