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Finding the Fourth Proportional to 171,554.95, 236,835.45 and 133,228.51

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Solution

The fourth proportional to 171,554.95, 236,835.45 and 133,228.51 is: 183,924.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,554.95 : 236,835.45 = 133,228.51 : x
  2. Step 2: Convert to fraction form
    171,554.95/236,835.45 = 133,228.51/x
  3. Step 3: Cross multiply
    171,554.95x = 236,835.45 × 133,228.51
  4. Step 4: Simplify right side
    171,554.95x = 31,553,234,118.68
  5. Step 5: Solve for x
    x = 31,553,234,118.68/171,554.95
  6. Step 6: Final answer
    x = 183,924.94

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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.