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Finding the Fourth Proportional to 218,444,815.80, 327,667,223.70 and 56,886,751.80

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Solution

The fourth proportional to 218,444,815.80, 327,667,223.70 and 56,886,751.80 is: 85,330,127.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,444,815.80 : 327,667,223.70 = 56,886,751.80 : x
  2. Step 2: Convert to fraction form
    218,444,815.80/327,667,223.70 = 56,886,751.80/x
  3. Step 3: Cross multiply
    218,444,815.80x = 327,667,223.70 × 56,886,751.80
  4. Step 4: Simplify right side
    218,444,815.80x = 18,639,924,027,616,976
  5. Step 5: Solve for x
    x = 18,639,924,027,616,976/218,444,815.80
  6. Step 6: Final answer
    x = 85,330,127.70

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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.