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Finding the Fourth Proportional to 508,081.52, 762,048.08 and 148,155.65

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Solution

The fourth proportional to 508,081.52, 762,048.08 and 148,155.65 is: 222,211.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,081.52 : 762,048.08 = 148,155.65 : x
  2. Step 2: Convert to fraction form
    508,081.52/762,048.08 = 148,155.65/x
  3. Step 3: Cross multiply
    508,081.52x = 762,048.08 × 148,155.65
  4. Step 4: Simplify right side
    508,081.52x = 112,901,724,072.63
  5. Step 5: Solve for x
    x = 112,901,724,072.63/508,081.52
  6. Step 6: Final answer
    x = 222,211.83

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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.