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Finding the Fourth Proportional to 96,671.93, 145,014.80 and 40,455.43

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Solution

The fourth proportional to 96,671.93, 145,014.80 and 40,455.43 is: 60,686.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,671.93 : 145,014.80 = 40,455.43 : x
  2. Step 2: Convert to fraction form
    96,671.93/145,014.80 = 40,455.43/x
  3. Step 3: Cross multiply
    96,671.93x = 145,014.80 × 40,455.43
  4. Step 4: Simplify right side
    96,671.93x = 5,866,635,525.55
  5. Step 5: Solve for x
    x = 5,866,635,525.55/96,671.93
  6. Step 6: Final answer
    x = 60,686.03

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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.