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Finding the Fourth Proportional to 108,866.82, 150,244.89 and 61,123.30

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Solution

The fourth proportional to 108,866.82, 150,244.89 and 61,123.30 is: 84,355.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,866.82 : 150,244.89 = 61,123.30 : x
  2. Step 2: Convert to fraction form
    108,866.82/150,244.89 = 61,123.30/x
  3. Step 3: Cross multiply
    108,866.82x = 150,244.89 × 61,123.30
  4. Step 4: Simplify right side
    108,866.82x = 9,183,463,484.94
  5. Step 5: Solve for x
    x = 9,183,463,484.94/108,866.82
  6. Step 6: Final answer
    x = 84,355.03

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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.