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Finding the Fourth Proportional to 99,772.80, 149,683.80 and 29,652.10

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Solution

The fourth proportional to 99,772.80, 149,683.80 and 29,652.10 is: 44,485.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,772.80 : 149,683.80 = 29,652.10 : x
  2. Step 2: Convert to fraction form
    99,772.80/149,683.80 = 29,652.10/x
  3. Step 3: Cross multiply
    99,772.80x = 149,683.80 × 29,652.10
  4. Step 4: Simplify right side
    99,772.80x = 4,438,439,005.98
  5. Step 5: Solve for x
    x = 4,438,439,005.98/99,772.80
  6. Step 6: Final answer
    x = 44,485.46

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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.