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Finding the Fourth Proportional to 221,366.85, 332,384.40 and 176,861.40

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Solution

The fourth proportional to 221,366.85, 332,384.40 and 176,861.40 is: 265,559.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,366.85 : 332,384.40 = 176,861.40 : x
  2. Step 2: Convert to fraction form
    221,366.85/332,384.40 = 176,861.40/x
  3. Step 3: Cross multiply
    221,366.85x = 332,384.40 × 176,861.40
  4. Step 4: Simplify right side
    221,366.85x = 58,785,970,322.16
  5. Step 5: Solve for x
    x = 58,785,970,322.16/221,366.85
  6. Step 6: Final answer
    x = 265,559.05

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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.