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Finding the Fourth Proportional to 107,903.75, 148,905.54 and 60,155.87

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Solution

The fourth proportional to 107,903.75, 148,905.54 and 60,155.87 is: 83,014.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,903.75 : 148,905.54 = 60,155.87 : x
  2. Step 2: Convert to fraction form
    107,903.75/148,905.54 = 60,155.87/x
  3. Step 3: Cross multiply
    107,903.75x = 148,905.54 × 60,155.87
  4. Step 4: Simplify right side
    107,903.75x = 8,957,541,561.99
  5. Step 5: Solve for x
    x = 8,957,541,561.99/107,903.75
  6. Step 6: Final answer
    x = 83,014.19

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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.