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Finding the Fourth Proportional to 371,355.62, 557,055.03 and 105,093.86

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Solution

The fourth proportional to 371,355.62, 557,055.03 and 105,093.86 is: 157,646.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,355.62 : 557,055.03 = 105,093.86 : x
  2. Step 2: Convert to fraction form
    371,355.62/557,055.03 = 105,093.86/x
  3. Step 3: Cross multiply
    371,355.62x = 557,055.03 × 105,093.86
  4. Step 4: Simplify right side
    371,355.62x = 58,543,063,335.12
  5. Step 5: Solve for x
    x = 58,543,063,335.12/371,355.62
  6. Step 6: Final answer
    x = 157,646.90

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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.