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Finding the Fourth Proportional to 578,521.62, 867,757.05 and 157,796.10

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Solution

The fourth proportional to 578,521.62, 867,757.05 and 157,796.10 is: 236,687.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,521.62 : 867,757.05 = 157,796.10 : x
  2. Step 2: Convert to fraction form
    578,521.62/867,757.05 = 157,796.10/x
  3. Step 3: Cross multiply
    578,521.62x = 867,757.05 × 157,796.10
  4. Step 4: Simplify right side
    578,521.62x = 136,928,678,237.51
  5. Step 5: Solve for x
    x = 136,928,678,237.51/578,521.62
  6. Step 6: Final answer
    x = 236,687.23

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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.