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Finding the Fourth Proportional to 104,852.40, 157,019.40 and 69,601.20

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Solution

The fourth proportional to 104,852.40, 157,019.40 and 69,601.20 is: 104,229.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,852.40 : 157,019.40 = 69,601.20 : x
  2. Step 2: Convert to fraction form
    104,852.40/157,019.40 = 69,601.20/x
  3. Step 3: Cross multiply
    104,852.40x = 157,019.40 × 69,601.20
  4. Step 4: Simplify right side
    104,852.40x = 10,928,738,663.28
  5. Step 5: Solve for x
    x = 10,928,738,663.28/104,852.40
  6. Step 6: Final answer
    x = 104,229.74

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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.