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Finding the Fourth Proportional to 104,776.68, 157,161.15 and 45,612.48

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Solution

The fourth proportional to 104,776.68, 157,161.15 and 45,612.48 is: 68,417.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,776.68 : 157,161.15 = 45,612.48 : x
  2. Step 2: Convert to fraction form
    104,776.68/157,161.15 = 45,612.48/x
  3. Step 3: Cross multiply
    104,776.68x = 157,161.15 × 45,612.48
  4. Step 4: Simplify right side
    104,776.68x = 7,168,509,811.15
  5. Step 5: Solve for x
    x = 7,168,509,811.15/104,776.68
  6. Step 6: Final answer
    x = 68,417.04

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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.