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Finding the Fourth Proportional to 171,750.33, 236,995.74 and 99,152.93

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Solution

The fourth proportional to 171,750.33, 236,995.74 and 99,152.93 is: 136,819.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,750.33 : 236,995.74 = 99,152.93 : x
  2. Step 2: Convert to fraction form
    171,750.33/236,995.74 = 99,152.93/x
  3. Step 3: Cross multiply
    171,750.33x = 236,995.74 × 99,152.93
  4. Step 4: Simplify right side
    171,750.33x = 23,498,822,611.01
  5. Step 5: Solve for x
    x = 23,498,822,611.01/171,750.33
  6. Step 6: Final answer
    x = 136,819.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.