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Finding the Fourth Proportional to 5,194,903.82, 7,168,976.99 and 2,903,064.50

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Solution

The fourth proportional to 5,194,903.82, 7,168,976.99 and 2,903,064.50 is: 4,006,234.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,194,903.82 : 7,168,976.99 = 2,903,064.50 : x
  2. Step 2: Convert to fraction form
    5,194,903.82/7,168,976.99 = 2,903,064.50/x
  3. Step 3: Cross multiply
    5,194,903.82x = 7,168,976.99 × 2,903,064.50
  4. Step 4: Simplify right side
    5,194,903.82x = 20,812,002,615,279.46
  5. Step 5: Solve for x
    x = 20,812,002,615,279.46/5,194,903.82
  6. Step 6: Final answer
    x = 4,006,234.45

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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.