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Finding the Fourth Proportional to 99,792.96, 149,683.77 and 60,339.48

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Solution

The fourth proportional to 99,792.96, 149,683.77 and 60,339.48 is: 90,505.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,792.96 : 149,683.77 = 60,339.48 : x
  2. Step 2: Convert to fraction form
    99,792.96/149,683.77 = 60,339.48/x
  3. Step 3: Cross multiply
    99,792.96x = 149,683.77 × 60,339.48
  4. Step 4: Simplify right side
    99,792.96x = 9,031,840,846.24
  5. Step 5: Solve for x
    x = 9,031,840,846.24/99,792.96
  6. Step 6: Final answer
    x = 90,505.79

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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.