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Finding the Fourth Proportional to 108,507.60, 149,733.36 and 60,750

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Solution

The fourth proportional to 108,507.60, 149,733.36 and 60,750 is: 83,831.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,507.60 : 149,733.36 = 60,750 : x
  2. Step 2: Convert to fraction form
    108,507.60/149,733.36 = 60,750/x
  3. Step 3: Cross multiply
    108,507.60x = 149,733.36 × 60,750
  4. Step 4: Simplify right side
    108,507.60x = 9,096,301,620
  5. Step 5: Solve for x
    x = 9,096,301,620/108,507.60
  6. Step 6: Final answer
    x = 83,831.01

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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.