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Finding the Fourth Proportional to 96,739.20, 145,108.80 and 92,851.20

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Solution

The fourth proportional to 96,739.20, 145,108.80 and 92,851.20 is: 139,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,739.20 : 145,108.80 = 92,851.20 : x
  2. Step 2: Convert to fraction form
    96,739.20/145,108.80 = 92,851.20/x
  3. Step 3: Cross multiply
    96,739.20x = 145,108.80 × 92,851.20
  4. Step 4: Simplify right side
    96,739.20x = 13,473,526,210.56
  5. Step 5: Solve for x
    x = 13,473,526,210.56/96,739.20
  6. Step 6: Final answer
    x = 139,276.80

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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.