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Finding the Fourth Proportional to 221,153,999.80, 331,730,999.70 and 59,595,935.80

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Solution

The fourth proportional to 221,153,999.80, 331,730,999.70 and 59,595,935.80 is: 89,393,903.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,153,999.80 : 331,730,999.70 = 59,595,935.80 : x
  2. Step 2: Convert to fraction form
    221,153,999.80/331,730,999.70 = 59,595,935.80/x
  3. Step 3: Cross multiply
    221,153,999.80x = 331,730,999.70 × 59,595,935.80
  4. Step 4: Simplify right side
    221,153,999.80x = 19,769,819,360,991,016
  5. Step 5: Solve for x
    x = 19,769,819,360,991,016/221,153,999.80
  6. Step 6: Final answer
    x = 89,393,903.70

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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.