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Finding the Fourth Proportional to 73,120.58, 100,900.77 and 41,292.26

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Solution

The fourth proportional to 73,120.58, 100,900.77 and 41,292.26 is: 56,980.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,120.58 : 100,900.77 = 41,292.26 : x
  2. Step 2: Convert to fraction form
    73,120.58/100,900.77 = 41,292.26/x
  3. Step 3: Cross multiply
    73,120.58x = 100,900.77 × 41,292.26
  4. Step 4: Simplify right side
    73,120.58x = 4,166,420,829.04
  5. Step 5: Solve for x
    x = 4,166,420,829.04/73,120.58
  6. Step 6: Final answer
    x = 56,980.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.