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Finding the Fourth Proportional to 109,296.31, 150,825.96 and 61,548.63

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Solution

The fourth proportional to 109,296.31, 150,825.96 and 61,548.63 is: 84,935.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,296.31 : 150,825.96 = 61,548.63 : x
  2. Step 2: Convert to fraction form
    109,296.31/150,825.96 = 61,548.63/x
  3. Step 3: Cross multiply
    109,296.31x = 150,825.96 × 61,548.63
  4. Step 4: Simplify right side
    109,296.31x = 9,283,131,206.43
  5. Step 5: Solve for x
    x = 9,283,131,206.43/109,296.31
  6. Step 6: Final answer
    x = 84,935.45

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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.