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Finding the Fourth Proportional to 67,054.60, 100,646.70 and 40,810.60

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Solution

The fourth proportional to 67,054.60, 100,646.70 and 40,810.60 is: 61,255.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,054.60 : 100,646.70 = 40,810.60 : x
  2. Step 2: Convert to fraction form
    67,054.60/100,646.70 = 40,810.60/x
  3. Step 3: Cross multiply
    67,054.60x = 100,646.70 × 40,810.60
  4. Step 4: Simplify right side
    67,054.60x = 4,107,452,215.02
  5. Step 5: Solve for x
    x = 4,107,452,215.02/67,054.60
  6. Step 6: Final answer
    x = 61,255.34

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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.