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Finding the Fourth Proportional to 111,710, 154,159.82 and 63,979.16

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Solution

The fourth proportional to 111,710, 154,159.82 and 63,979.16 is: 88,291.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,710 : 154,159.82 = 63,979.16 : x
  2. Step 2: Convert to fraction form
    111,710/154,159.82 = 63,979.16/x
  3. Step 3: Cross multiply
    111,710x = 154,159.82 × 63,979.16
  4. Step 4: Simplify right side
    111,710x = 9,863,015,789.35
  5. Step 5: Solve for x
    x = 9,863,015,789.35/111,710
  6. Step 6: Final answer
    x = 88,291.25

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.