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Finding the Fourth Proportional to 172,510.56, 258,558.48 and 93,621.60

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Solution

The fourth proportional to 172,510.56, 258,558.48 and 93,621.60 is: 140,319.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,510.56 : 258,558.48 = 93,621.60 : x
  2. Step 2: Convert to fraction form
    172,510.56/258,558.48 = 93,621.60/x
  3. Step 3: Cross multiply
    172,510.56x = 258,558.48 × 93,621.60
  4. Step 4: Simplify right side
    172,510.56x = 24,206,658,591.17
  5. Step 5: Solve for x
    x = 24,206,658,591.17/172,510.56
  6. Step 6: Final answer
    x = 140,319.87

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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.