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Finding the Fourth Proportional to 251,680.77, 377,520.75 and 172,555.11

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Solution

The fourth proportional to 251,680.77, 377,520.75 and 172,555.11 is: 258,832.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,680.77 : 377,520.75 = 172,555.11 : x
  2. Step 2: Convert to fraction form
    251,680.77/377,520.75 = 172,555.11/x
  3. Step 3: Cross multiply
    251,680.77x = 377,520.75 × 172,555.11
  4. Step 4: Simplify right side
    251,680.77x = 65,143,134,543.53
  5. Step 5: Solve for x
    x = 65,143,134,543.53/251,680.77
  6. Step 6: Final answer
    x = 258,832.39

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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.