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Finding the Fourth Proportional to 111,052.77, 153,252.67 and 62,654.64

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Solution

The fourth proportional to 111,052.77, 153,252.67 and 62,654.64 is: 86,463.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,052.77 : 153,252.67 = 62,654.64 : x
  2. Step 2: Convert to fraction form
    111,052.77/153,252.67 = 62,654.64/x
  3. Step 3: Cross multiply
    111,052.77x = 153,252.67 × 62,654.64
  4. Step 4: Simplify right side
    111,052.77x = 9,601,989,788.35
  5. Step 5: Solve for x
    x = 9,601,989,788.35/111,052.77
  6. Step 6: Final answer
    x = 86,463.31

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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.