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Finding the Fourth Proportional to 109,383.99, 150,948.69 and 61,637.25

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Solution

The fourth proportional to 109,383.99, 150,948.69 and 61,637.25 is: 85,058.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,383.99 : 150,948.69 = 61,637.25 : x
  2. Step 2: Convert to fraction form
    109,383.99/150,948.69 = 61,637.25/x
  3. Step 3: Cross multiply
    109,383.99x = 150,948.69 × 61,637.25
  4. Step 4: Simplify right side
    109,383.99x = 9,304,062,142.70
  5. Step 5: Solve for x
    x = 9,304,062,142.70/109,383.99
  6. Step 6: Final answer
    x = 85,058.72

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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.