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Finding the Fourth Proportional to 67,405.80, 101,108.70 and 46,410.60

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Solution

The fourth proportional to 67,405.80, 101,108.70 and 46,410.60 is: 69,615.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,405.80 : 101,108.70 = 46,410.60 : x
  2. Step 2: Convert to fraction form
    67,405.80/101,108.70 = 46,410.60/x
  3. Step 3: Cross multiply
    67,405.80x = 101,108.70 × 46,410.60
  4. Step 4: Simplify right side
    67,405.80x = 4,692,515,432.22
  5. Step 5: Solve for x
    x = 4,692,515,432.22/67,405.80
  6. Step 6: Final answer
    x = 69,615.90

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1.5x scale

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.