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Finding the Fourth Proportional to 108,957.26, 150,352.93 and 61,218.56

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Solution

The fourth proportional to 108,957.26, 150,352.93 and 61,218.56 is: 84,477.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,957.26 : 150,352.93 = 61,218.56 : x
  2. Step 2: Convert to fraction form
    108,957.26/150,352.93 = 61,218.56/x
  3. Step 3: Cross multiply
    108,957.26x = 150,352.93 × 61,218.56
  4. Step 4: Simplify right side
    108,957.26x = 9,204,389,866.38
  5. Step 5: Solve for x
    x = 9,204,389,866.38/108,957.26
  6. Step 6: Final answer
    x = 84,477.07

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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.