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Finding the Fourth Proportional to 111,657.26, 167,391.72 and 48,429.76

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Solution

The fourth proportional to 111,657.26, 167,391.72 and 48,429.76 is: 72,603.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,657.26 : 167,391.72 = 48,429.76 : x
  2. Step 2: Convert to fraction form
    111,657.26/167,391.72 = 48,429.76/x
  3. Step 3: Cross multiply
    111,657.26x = 167,391.72 × 48,429.76
  4. Step 4: Simplify right side
    111,657.26x = 8,106,739,746.48
  5. Step 5: Solve for x
    x = 8,106,739,746.48/111,657.26
  6. Step 6: Final answer
    x = 72,603.79

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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.