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Finding the Fourth Proportional to 223,490.01, 335,445.66 and 81,472.59

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Solution

The fourth proportional to 223,490.01, 335,445.66 and 81,472.59 is: 122,285.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,490.01 : 335,445.66 = 81,472.59 : x
  2. Step 2: Convert to fraction form
    223,490.01/335,445.66 = 81,472.59/x
  3. Step 3: Cross multiply
    223,490.01x = 335,445.66 × 81,472.59
  4. Step 4: Simplify right side
    223,490.01x = 27,329,626,724.46
  5. Step 5: Solve for x
    x = 27,329,626,724.46/223,490.01
  6. Step 6: Final answer
    x = 122,285.67

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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.