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Finding the Fourth Proportional to 354,445.57, 531,737.56 and 114,619.05

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Solution

The fourth proportional to 354,445.57, 531,737.56 and 114,619.05 is: 171,950.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,445.57 : 531,737.56 = 114,619.05 : x
  2. Step 2: Convert to fraction form
    354,445.57/531,737.56 = 114,619.05/x
  3. Step 3: Cross multiply
    354,445.57x = 531,737.56 × 114,619.05
  4. Step 4: Simplify right side
    354,445.57x = 60,947,254,119.79
  5. Step 5: Solve for x
    x = 60,947,254,119.79/354,445.57
  6. Step 6: Final answer
    x = 171,950.95

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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.