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Finding the Fourth Proportional to 108,845.55, 150,187.91 and 61,100.91

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Solution

The fourth proportional to 108,845.55, 150,187.91 and 61,100.91 is: 84,308.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,845.55 : 150,187.91 = 61,100.91 : x
  2. Step 2: Convert to fraction form
    108,845.55/150,187.91 = 61,100.91/x
  3. Step 3: Cross multiply
    108,845.55x = 150,187.91 × 61,100.91
  4. Step 4: Simplify right side
    108,845.55x = 9,176,617,666.49
  5. Step 5: Solve for x
    x = 9,176,617,666.49/108,845.55
  6. Step 6: Final answer
    x = 84,308.62

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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.