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Finding the Fourth Proportional to 173,093.76, 259,640.64 and 138,254.85

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Solution

The fourth proportional to 173,093.76, 259,640.64 and 138,254.85 is: 207,382.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,093.76 : 259,640.64 = 138,254.85 : x
  2. Step 2: Convert to fraction form
    173,093.76/259,640.64 = 138,254.85/x
  3. Step 3: Cross multiply
    173,093.76x = 259,640.64 × 138,254.85
  4. Step 4: Simplify right side
    173,093.76x = 35,896,577,737.10
  5. Step 5: Solve for x
    x = 35,896,577,737.10/173,093.76
  6. Step 6: Final answer
    x = 207,382.28

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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.