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Finding the Fourth Proportional to 172,663.85, 238,241.45 and 101,030.49

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Solution

The fourth proportional to 172,663.85, 238,241.45 and 101,030.49 is: 139,401.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,663.85 : 238,241.45 = 101,030.49 : x
  2. Step 2: Convert to fraction form
    172,663.85/238,241.45 = 101,030.49/x
  3. Step 3: Cross multiply
    172,663.85x = 238,241.45 × 101,030.49
  4. Step 4: Simplify right side
    172,663.85x = 24,069,650,684.39
  5. Step 5: Solve for x
    x = 24,069,650,684.39/172,663.85
  6. Step 6: Final answer
    x = 139,401.79

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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.