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Finding the Fourth Proportional to 171,505.84, 236,602.67 and 103,484.87

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Solution

The fourth proportional to 171,505.84, 236,602.67 and 103,484.87 is: 142,763.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,505.84 : 236,602.67 = 103,484.87 : x
  2. Step 2: Convert to fraction form
    171,505.84/236,602.67 = 103,484.87/x
  3. Step 3: Cross multiply
    171,505.84x = 236,602.67 × 103,484.87
  4. Step 4: Simplify right side
    171,505.84x = 24,484,796,620.69
  5. Step 5: Solve for x
    x = 24,484,796,620.69/171,505.84
  6. Step 6: Final answer
    x = 142,763.63

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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.