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Finding the Fourth Proportional to 356,612.87, 535,151.23 and 154,406.45

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Solution

The fourth proportional to 356,612.87, 535,151.23 and 154,406.45 is: 231,710.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,612.87 : 535,151.23 = 154,406.45 : x
  2. Step 2: Convert to fraction form
    356,612.87/535,151.23 = 154,406.45/x
  3. Step 3: Cross multiply
    356,612.87x = 535,151.23 × 154,406.45
  4. Step 4: Simplify right side
    356,612.87x = 82,630,802,589.30
  5. Step 5: Solve for x
    x = 82,630,802,589.30/356,612.87
  6. Step 6: Final answer
    x = 231,710.10

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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.