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Finding the Fourth Proportional to 266,366.70, 399,701.52 and 97,865.37

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Solution

The fourth proportional to 266,366.70, 399,701.52 and 97,865.37 is: 146,853.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,366.70 : 399,701.52 = 97,865.37 : x
  2. Step 2: Convert to fraction form
    266,366.70/399,701.52 = 97,865.37/x
  3. Step 3: Cross multiply
    266,366.70x = 399,701.52 × 97,865.37
  4. Step 4: Simplify right side
    266,366.70x = 39,116,937,144.36
  5. Step 5: Solve for x
    x = 39,116,937,144.36/266,366.70
  6. Step 6: Final answer
    x = 146,853.71

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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.