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Finding the Fourth Proportional to 172,769.68, 238,340.64 and 101,105.34

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Solution

The fourth proportional to 172,769.68, 238,340.64 and 101,105.34 is: 139,477.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,769.68 : 238,340.64 = 101,105.34 : x
  2. Step 2: Convert to fraction form
    172,769.68/238,340.64 = 101,105.34/x
  3. Step 3: Cross multiply
    172,769.68x = 238,340.64 × 101,105.34
  4. Step 4: Simplify right side
    172,769.68x = 24,097,511,443.02
  5. Step 5: Solve for x
    x = 24,097,511,443.02/172,769.68
  6. Step 6: Final answer
    x = 139,477.66

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1.5x scale

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.