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Finding the Fourth Proportional to 353,764.65, 530,518.49 and 154,036.88

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Solution

The fourth proportional to 353,764.65, 530,518.49 and 154,036.88 is: 230,999.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,764.65 : 530,518.49 = 154,036.88 : x
  2. Step 2: Convert to fraction form
    353,764.65/530,518.49 = 154,036.88/x
  3. Step 3: Cross multiply
    353,764.65x = 530,518.49 × 154,036.88
  4. Step 4: Simplify right side
    353,764.65x = 81,719,412,981.91
  5. Step 5: Solve for x
    x = 81,719,412,981.91/353,764.65
  6. Step 6: Final answer
    x = 230,999.37

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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.