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Finding the Fourth Proportional to 104,903.92, 157,385.08 and 45,744.80

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Solution

The fourth proportional to 104,903.92, 157,385.08 and 45,744.80 is: 68,629.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,903.92 : 157,385.08 = 45,744.80 : x
  2. Step 2: Convert to fraction form
    104,903.92/157,385.08 = 45,744.80/x
  3. Step 3: Cross multiply
    104,903.92x = 157,385.08 × 45,744.80
  4. Step 4: Simplify right side
    104,903.92x = 7,199,549,007.58
  5. Step 5: Solve for x
    x = 7,199,549,007.58/104,903.92
  6. Step 6: Final answer
    x = 68,629.93

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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.