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Finding the Fourth Proportional to 111,360.72, 167,041.08 and 52,237.92

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Solution

The fourth proportional to 111,360.72, 167,041.08 and 52,237.92 is: 78,356.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,360.72 : 167,041.08 = 52,237.92 : x
  2. Step 2: Convert to fraction form
    111,360.72/167,041.08 = 52,237.92/x
  3. Step 3: Cross multiply
    111,360.72x = 167,041.08 × 52,237.92
  4. Step 4: Simplify right side
    111,360.72x = 8,725,878,573.75
  5. Step 5: Solve for x
    x = 8,725,878,573.75/111,360.72
  6. Step 6: Final answer
    x = 78,356.88

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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.