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Finding the Fourth Proportional to 108,900.95, 150,283.31 and 61,154.33

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Solution

The fourth proportional to 108,900.95, 150,283.31 and 61,154.33 is: 84,392.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,900.95 : 150,283.31 = 61,154.33 : x
  2. Step 2: Convert to fraction form
    108,900.95/150,283.31 = 61,154.33/x
  3. Step 3: Cross multiply
    108,900.95x = 150,283.31 × 61,154.33
  4. Step 4: Simplify right side
    108,900.95x = 9,190,474,076.04
  5. Step 5: Solve for x
    x = 9,190,474,076.04/108,900.95
  6. Step 6: Final answer
    x = 84,392.97

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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.