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Finding the Fourth Proportional to 221,301,228.70, 310,275,216.50 and 221,301,228.70

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Solution

The fourth proportional to 221,301,228.70, 310,275,216.50 and 221,301,228.70 is: 310,275,216.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,301,228.70 : 310,275,216.50 = 221,301,228.70 : x
  2. Step 2: Convert to fraction form
    221,301,228.70/310,275,216.50 = 221,301,228.70/x
  3. Step 3: Cross multiply
    221,301,228.70x = 310,275,216.50 × 221,301,228.70
  4. Step 4: Simplify right side
    221,301,228.70x = 68,664,286,646,608,512
  5. Step 5: Solve for x
    x = 68,664,286,646,608,512/221,301,228.70
  6. Step 6: Final answer
    x = 310,275,216.50

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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.