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Finding the Fourth Proportional to 108,772.80, 150,104.16 and 61,037.76

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Solution

The fourth proportional to 108,772.80, 150,104.16 and 61,037.76 is: 84,230.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,772.80 : 150,104.16 = 61,037.76 : x
  2. Step 2: Convert to fraction form
    108,772.80/150,104.16 = 61,037.76/x
  3. Step 3: Cross multiply
    108,772.80x = 150,104.16 × 61,037.76
  4. Step 4: Simplify right side
    108,772.80x = 9,162,021,693.08
  5. Step 5: Solve for x
    x = 9,162,021,693.08/108,772.80
  6. Step 6: Final answer
    x = 84,230.82

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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.