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Finding the Fourth Proportional to 104,975.80, 157,463.70 and 101,039.20

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Solution

The fourth proportional to 104,975.80, 157,463.70 and 101,039.20 is: 151,558.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,975.80 : 157,463.70 = 101,039.20 : x
  2. Step 2: Convert to fraction form
    104,975.80/157,463.70 = 101,039.20/x
  3. Step 3: Cross multiply
    104,975.80x = 157,463.70 × 101,039.20
  4. Step 4: Simplify right side
    104,975.80x = 15,910,006,277.04
  5. Step 5: Solve for x
    x = 15,910,006,277.04/104,975.80
  6. Step 6: Final answer
    x = 151,558.80

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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.