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Finding the Fourth Proportional to 109,333.80, 150,883.56 and 61,584.30

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Solution

The fourth proportional to 109,333.80, 150,883.56 and 61,584.30 is: 84,987.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,333.80 : 150,883.56 = 61,584.30 : x
  2. Step 2: Convert to fraction form
    109,333.80/150,883.56 = 61,584.30/x
  3. Step 3: Cross multiply
    109,333.80x = 150,883.56 × 61,584.30
  4. Step 4: Simplify right side
    109,333.80x = 9,292,058,424.11
  5. Step 5: Solve for x
    x = 9,292,058,424.11/109,333.80
  6. Step 6: Final answer
    x = 84,987.98

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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.