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Finding the Fourth Proportional to 73,630.40, 110,503.20 and 34,192.40

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Solution

The fourth proportional to 73,630.40, 110,503.20 and 34,192.40 is: 51,315.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,630.40 : 110,503.20 = 34,192.40 : x
  2. Step 2: Convert to fraction form
    73,630.40/110,503.20 = 34,192.40/x
  3. Step 3: Cross multiply
    73,630.40x = 110,503.20 × 34,192.40
  4. Step 4: Simplify right side
    73,630.40x = 3,778,369,615.68
  5. Step 5: Solve for x
    x = 3,778,369,615.68/73,630.40
  6. Step 6: Final answer
    x = 51,315.35

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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.