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Finding the Fourth Proportional to 109,296.60, 150,829.86 and 61,550.76

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Solution

The fourth proportional to 109,296.60, 150,829.86 and 61,550.76 is: 84,940.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,296.60 : 150,829.86 = 61,550.76 : x
  2. Step 2: Convert to fraction form
    109,296.60/150,829.86 = 61,550.76/x
  3. Step 3: Cross multiply
    109,296.60x = 150,829.86 × 61,550.76
  4. Step 4: Simplify right side
    109,296.60x = 9,283,692,513.69
  5. Step 5: Solve for x
    x = 9,283,692,513.69/109,296.60
  6. Step 6: Final answer
    x = 84,940.36

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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.