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Finding the Fourth Proportional to 211,136.48, 291,198.48 and 163,518.56

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Solution

The fourth proportional to 211,136.48, 291,198.48 and 163,518.56 is: 225,524.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,136.48 : 291,198.48 = 163,518.56 : x
  2. Step 2: Convert to fraction form
    211,136.48/291,198.48 = 163,518.56/x
  3. Step 3: Cross multiply
    211,136.48x = 291,198.48 × 163,518.56
  4. Step 4: Simplify right side
    211,136.48x = 47,616,356,123.79
  5. Step 5: Solve for x
    x = 47,616,356,123.79/211,136.48
  6. Step 6: Final answer
    x = 225,524.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.