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Finding the Fourth Proportional to 157,900.86, 236,851.29 and 64,413.90

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Solution

The fourth proportional to 157,900.86, 236,851.29 and 64,413.90 is: 96,620.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,900.86 : 236,851.29 = 64,413.90 : x
  2. Step 2: Convert to fraction form
    157,900.86/236,851.29 = 64,413.90/x
  3. Step 3: Cross multiply
    157,900.86x = 236,851.29 × 64,413.90
  4. Step 4: Simplify right side
    157,900.86x = 15,256,515,308.93
  5. Step 5: Solve for x
    x = 15,256,515,308.93/157,900.86
  6. Step 6: Final answer
    x = 96,620.85

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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.