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Finding the Fourth Proportional to 201,219,207.90, 301,828,811.85 and 201,219,207.90

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Solution

The fourth proportional to 201,219,207.90, 301,828,811.85 and 201,219,207.90 is: 301,828,811.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,219,207.90 : 301,828,811.85 = 201,219,207.90 : x
  2. Step 2: Convert to fraction form
    201,219,207.90/301,828,811.85 = 201,219,207.90/x
  3. Step 3: Cross multiply
    201,219,207.90x = 301,828,811.85 × 201,219,207.90
  4. Step 4: Simplify right side
    201,219,207.90x = 60,733,754,441,855,144
  5. Step 5: Solve for x
    x = 60,733,754,441,855,144/201,219,207.90
  6. Step 6: Final answer
    x = 301,828,811.85

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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.