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Finding the Fourth Proportional to 266,424.02, 399,626.82 and 66,746.12

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Solution

The fourth proportional to 266,424.02, 399,626.82 and 66,746.12 is: 100,116.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,424.02 : 399,626.82 = 66,746.12 : x
  2. Step 2: Convert to fraction form
    266,424.02/399,626.82 = 66,746.12/x
  3. Step 3: Cross multiply
    266,424.02x = 399,626.82 × 66,746.12
  4. Step 4: Simplify right side
    266,424.02x = 26,673,539,682.94
  5. Step 5: Solve for x
    x = 26,673,539,682.94/266,424.02
  6. Step 6: Final answer
    x = 100,116.87

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1.5x scale

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.