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Finding the Fourth Proportional to 111,808.58, 167,742.03 and 41,688.50

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Solution

The fourth proportional to 111,808.58, 167,742.03 and 41,688.50 is: 62,543.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,808.58 : 167,742.03 = 41,688.50 : x
  2. Step 2: Convert to fraction form
    111,808.58/167,742.03 = 41,688.50/x
  3. Step 3: Cross multiply
    111,808.58x = 167,742.03 × 41,688.50
  4. Step 4: Simplify right side
    111,808.58x = 6,992,913,617.66
  5. Step 5: Solve for x
    x = 6,992,913,617.66/111,808.58
  6. Step 6: Final answer
    x = 62,543.62

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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.