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Finding the Fourth Proportional to 157,866.86, 236,800.30 and 64,379.90

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Solution

The fourth proportional to 157,866.86, 236,800.30 and 64,379.90 is: 96,569.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,866.86 : 236,800.30 = 64,379.90 : x
  2. Step 2: Convert to fraction form
    157,866.86/236,800.30 = 64,379.90/x
  3. Step 3: Cross multiply
    157,866.86x = 236,800.30 × 64,379.90
  4. Step 4: Simplify right side
    157,866.86x = 15,245,179,633.97
  5. Step 5: Solve for x
    x = 15,245,179,633.97/157,866.86
  6. Step 6: Final answer
    x = 96,569.85

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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.