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Finding the Fourth Proportional to 556,990.56, 835,490.34 and 157,644.36

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Solution

The fourth proportional to 556,990.56, 835,490.34 and 157,644.36 is: 236,467.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,990.56 : 835,490.34 = 157,644.36 : x
  2. Step 2: Convert to fraction form
    556,990.56/835,490.34 = 157,644.36/x
  3. Step 3: Cross multiply
    556,990.56x = 835,490.34 × 157,644.36
  4. Step 4: Simplify right side
    556,990.56x = 131,710,339,935.48
  5. Step 5: Solve for x
    x = 131,710,339,935.48/556,990.56
  6. Step 6: Final answer
    x = 236,467.81

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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.