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Finding the Fourth Proportional to 5,903,742.80, 8,857,687.80 and 2,117,349.20

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Solution

The fourth proportional to 5,903,742.80, 8,857,687.80 and 2,117,349.20 is: 3,176,767.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,903,742.80 : 8,857,687.80 = 2,117,349.20 : x
  2. Step 2: Convert to fraction form
    5,903,742.80/8,857,687.80 = 2,117,349.20/x
  3. Step 3: Cross multiply
    5,903,742.80x = 8,857,687.80 × 2,117,349.20
  4. Step 4: Simplify right side
    5,903,742.80x = 18,754,818,177,179.76
  5. Step 5: Solve for x
    x = 18,754,818,177,179.76/5,903,742.80
  6. Step 6: Final answer
    x = 3,176,767.49

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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.