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Finding the Fourth Proportional to 175,059.70, 262,589.55 and 172,143.70

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Solution

The fourth proportional to 175,059.70, 262,589.55 and 172,143.70 is: 258,215.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,059.70 : 262,589.55 = 172,143.70 : x
  2. Step 2: Convert to fraction form
    175,059.70/262,589.55 = 172,143.70/x
  3. Step 3: Cross multiply
    175,059.70x = 262,589.55 × 172,143.70
  4. Step 4: Simplify right side
    175,059.70x = 45,203,136,718.34
  5. Step 5: Solve for x
    x = 45,203,136,718.34/175,059.70
  6. Step 6: Final answer
    x = 258,215.55

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1.5x scale

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.