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Finding the Fourth Proportional to 578,507.76, 867,672.54 and 157,816.44

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Solution

The fourth proportional to 578,507.76, 867,672.54 and 157,816.44 is: 236,700.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,507.76 : 867,672.54 = 157,816.44 : x
  2. Step 2: Convert to fraction form
    578,507.76/867,672.54 = 157,816.44/x
  3. Step 3: Cross multiply
    578,507.76x = 867,672.54 × 157,816.44
  4. Step 4: Simplify right side
    578,507.76x = 136,932,991,348.56
  5. Step 5: Solve for x
    x = 136,932,991,348.56/578,507.76
  6. Step 6: Final answer
    x = 236,700.35

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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.