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Finding the Fourth Proportional to 354,448.54, 531,512.89 and 101,671.68

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Solution

The fourth proportional to 354,448.54, 531,512.89 and 101,671.68 is: 152,461.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,448.54 : 531,512.89 = 101,671.68 : x
  2. Step 2: Convert to fraction form
    354,448.54/531,512.89 = 101,671.68/x
  3. Step 3: Cross multiply
    354,448.54x = 531,512.89 × 101,671.68
  4. Step 4: Simplify right side
    354,448.54x = 54,039,808,467.96
  5. Step 5: Solve for x
    x = 54,039,808,467.96/354,448.54
  6. Step 6: Final answer
    x = 152,461.65

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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.