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Finding the Fourth Proportional to 356,980.72, 535,208.64 and 170,123.44

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Solution

The fourth proportional to 356,980.72, 535,208.64 and 170,123.44 is: 255,060.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,980.72 : 535,208.64 = 170,123.44 : x
  2. Step 2: Convert to fraction form
    356,980.72/535,208.64 = 170,123.44/x
  3. Step 3: Cross multiply
    356,980.72x = 535,208.64 × 170,123.44
  4. Step 4: Simplify right side
    356,980.72x = 91,051,534,954.52
  5. Step 5: Solve for x
    x = 91,051,534,954.52/356,980.72
  6. Step 6: Final answer
    x = 255,060.09

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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.