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Finding the Fourth Proportional to 111,859.66, 154,331.58 and 63,453.62

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Solution

The fourth proportional to 111,859.66, 154,331.58 and 63,453.62 is: 87,546.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,859.66 : 154,331.58 = 63,453.62 : x
  2. Step 2: Convert to fraction form
    111,859.66/154,331.58 = 63,453.62/x
  3. Step 3: Cross multiply
    111,859.66x = 154,331.58 × 63,453.62
  4. Step 4: Simplify right side
    111,859.66x = 9,792,897,431.32
  5. Step 5: Solve for x
    x = 9,792,897,431.32/111,859.66
  6. Step 6: Final answer
    x = 87,546.28

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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.