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Finding the Fourth Proportional to 146,737.80, 220,106.70 and 53,231.40

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Solution

The fourth proportional to 146,737.80, 220,106.70 and 53,231.40 is: 79,847.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,737.80 : 220,106.70 = 53,231.40 : x
  2. Step 2: Convert to fraction form
    146,737.80/220,106.70 = 53,231.40/x
  3. Step 3: Cross multiply
    146,737.80x = 220,106.70 × 53,231.40
  4. Step 4: Simplify right side
    146,737.80x = 11,716,587,790.38
  5. Step 5: Solve for x
    x = 11,716,587,790.38/146,737.80
  6. Step 6: Final answer
    x = 79,847.10

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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.