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Finding the Fourth Proportional to 111,297.42, 153,594.36 and 63,549.90

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Solution

The fourth proportional to 111,297.42, 153,594.36 and 63,549.90 is: 87,701.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,297.42 : 153,594.36 = 63,549.90 : x
  2. Step 2: Convert to fraction form
    111,297.42/153,594.36 = 63,549.90/x
  3. Step 3: Cross multiply
    111,297.42x = 153,594.36 × 63,549.90
  4. Step 4: Simplify right side
    111,297.42x = 9,760,906,218.56
  5. Step 5: Solve for x
    x = 9,760,906,218.56/111,297.42
  6. Step 6: Final answer
    x = 87,701.10

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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.