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Finding the Fourth Proportional to 111,583.31, 167,374.74 and 40,505.91

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Solution

The fourth proportional to 111,583.31, 167,374.74 and 40,505.91 is: 60,758.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,583.31 : 167,374.74 = 40,505.91 : x
  2. Step 2: Convert to fraction form
    111,583.31/167,374.74 = 40,505.91/x
  3. Step 3: Cross multiply
    111,583.31x = 167,374.74 × 40,505.91
  4. Step 4: Simplify right side
    111,583.31x = 6,779,666,154.71
  5. Step 5: Solve for x
    x = 6,779,666,154.71/111,583.31
  6. Step 6: Final answer
    x = 60,758.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.