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Finding the Fourth Proportional to 173,003.40, 238,746.42 and 101,425.80

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Solution

The fourth proportional to 173,003.40, 238,746.42 and 101,425.80 is: 139,968.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,003.40 : 238,746.42 = 101,425.80 : x
  2. Step 2: Convert to fraction form
    173,003.40/238,746.42 = 101,425.80/x
  3. Step 3: Cross multiply
    173,003.40x = 238,746.42 × 101,425.80
  4. Step 4: Simplify right side
    173,003.40x = 24,215,046,645.64
  5. Step 5: Solve for x
    x = 24,215,046,645.64/173,003.40
  6. Step 6: Final answer
    x = 139,968.62

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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.