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Finding the Fourth Proportional to 111,141.16, 153,375.06 and 60,843.40

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Solution

The fourth proportional to 111,141.16, 153,375.06 and 60,843.40 is: 83,964.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,141.16 : 153,375.06 = 60,843.40 : x
  2. Step 2: Convert to fraction form
    111,141.16/153,375.06 = 60,843.40/x
  3. Step 3: Cross multiply
    111,141.16x = 153,375.06 × 60,843.40
  4. Step 4: Simplify right side
    111,141.16x = 9,331,860,125.60
  5. Step 5: Solve for x
    x = 9,331,860,125.60/111,141.16
  6. Step 6: Final answer
    x = 83,964.03

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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.