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Finding the Fourth Proportional to 73,157.04, 100,957.20 and 39,623.04

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Solution

The fourth proportional to 73,157.04, 100,957.20 and 39,623.04 is: 54,680.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,157.04 : 100,957.20 = 39,623.04 : x
  2. Step 2: Convert to fraction form
    73,157.04/100,957.20 = 39,623.04/x
  3. Step 3: Cross multiply
    73,157.04x = 100,957.20 × 39,623.04
  4. Step 4: Simplify right side
    73,157.04x = 4,000,231,173.89
  5. Step 5: Solve for x
    x = 4,000,231,173.89/73,157.04
  6. Step 6: Final answer
    x = 54,680.06

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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.