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Finding the Fourth Proportional to 111,762.66, 167,643.48 and 45,201.96

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Solution

The fourth proportional to 111,762.66, 167,643.48 and 45,201.96 is: 67,802.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,762.66 : 167,643.48 = 45,201.96 : x
  2. Step 2: Convert to fraction form
    111,762.66/167,643.48 = 45,201.96/x
  3. Step 3: Cross multiply
    111,762.66x = 167,643.48 × 45,201.96
  4. Step 4: Simplify right side
    111,762.66x = 7,577,813,877.22
  5. Step 5: Solve for x
    x = 7,577,813,877.22/111,762.66
  6. Step 6: Final answer
    x = 67,802.73

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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.