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Finding the Fourth Proportional to 99,662.34, 149,324.34 and 60,136.40

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Solution

The fourth proportional to 99,662.34, 149,324.34 and 60,136.40 is: 90,102.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,662.34 : 149,324.34 = 60,136.40 : x
  2. Step 2: Convert to fraction form
    99,662.34/149,324.34 = 60,136.40/x
  3. Step 3: Cross multiply
    99,662.34x = 149,324.34 × 60,136.40
  4. Step 4: Simplify right side
    99,662.34x = 8,979,828,239.98
  5. Step 5: Solve for x
    x = 8,979,828,239.98/99,662.34
  6. Step 6: Final answer
    x = 90,102.52

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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.