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Finding the Fourth Proportional to 111,192.32, 153,442.06 and 63,444.44

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Solution

The fourth proportional to 111,192.32, 153,442.06 and 63,444.44 is: 87,551.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,192.32 : 153,442.06 = 63,444.44 : x
  2. Step 2: Convert to fraction form
    111,192.32/153,442.06 = 63,444.44/x
  3. Step 3: Cross multiply
    111,192.32x = 153,442.06 × 63,444.44
  4. Step 4: Simplify right side
    111,192.32x = 9,735,044,643.33
  5. Step 5: Solve for x
    x = 9,735,044,643.33/111,192.32
  6. Step 6: Final answer
    x = 87,551.42

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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.