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Finding the Fourth Proportional to 111,635.66, 154,056.56 and 60,647.98

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Solution

The fourth proportional to 111,635.66, 154,056.56 and 60,647.98 is: 83,693.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,635.66 : 154,056.56 = 60,647.98 : x
  2. Step 2: Convert to fraction form
    111,635.66/154,056.56 = 60,647.98/x
  3. Step 3: Cross multiply
    111,635.66x = 154,056.56 × 60,647.98
  4. Step 4: Simplify right side
    111,635.66x = 9,343,219,169.75
  5. Step 5: Solve for x
    x = 9,343,219,169.75/111,635.66
  6. Step 6: Final answer
    x = 83,693.86

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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.