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Finding the Fourth Proportional to 217,817,247.60, 305,170,894.80 and 217,817,247.60

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Solution

The fourth proportional to 217,817,247.60, 305,170,894.80 and 217,817,247.60 is: 305,170,894.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,817,247.60 : 305,170,894.80 = 217,817,247.60 : x
  2. Step 2: Convert to fraction form
    217,817,247.60/305,170,894.80 = 217,817,247.60/x
  3. Step 3: Cross multiply
    217,817,247.60x = 305,170,894.80 × 217,817,247.60
  4. Step 4: Simplify right side
    217,817,247.60x = 66,471,484,352,965,152
  5. Step 5: Solve for x
    x = 66,471,484,352,965,152/217,817,247.60
  6. Step 6: Final answer
    x = 305,170,894.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.