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Finding the Fourth Proportional to 108,550.72, 149,800.80 and 60,804.64

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Solution

The fourth proportional to 108,550.72, 149,800.80 and 60,804.64 is: 83,910.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,550.72 : 149,800.80 = 60,804.64 : x
  2. Step 2: Convert to fraction form
    108,550.72/149,800.80 = 60,804.64/x
  3. Step 3: Cross multiply
    108,550.72x = 149,800.80 × 60,804.64
  4. Step 4: Simplify right side
    108,550.72x = 9,108,583,715.71
  5. Step 5: Solve for x
    x = 9,108,583,715.71/108,550.72
  6. Step 6: Final answer
    x = 83,910.85

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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.