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Finding the Fourth Proportional to 115,503.76, 173,270.22 and 40,606.30

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Solution

The fourth proportional to 115,503.76, 173,270.22 and 40,606.30 is: 60,914.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,503.76 : 173,270.22 = 40,606.30 : x
  2. Step 2: Convert to fraction form
    115,503.76/173,270.22 = 40,606.30/x
  3. Step 3: Cross multiply
    115,503.76x = 173,270.22 × 40,606.30
  4. Step 4: Simplify right side
    115,503.76x = 7,035,862,534.39
  5. Step 5: Solve for x
    x = 7,035,862,534.39/115,503.76
  6. Step 6: Final answer
    x = 60,914.58

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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.