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Finding the Fourth Proportional to 201,584,909.90, 302,433,352.05 and 86,624,525.90

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Solution

The fourth proportional to 201,584,909.90, 302,433,352.05 and 86,624,525.90 is: 129,960,847.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,584,909.90 : 302,433,352.05 = 86,624,525.90 : x
  2. Step 2: Convert to fraction form
    201,584,909.90/302,433,352.05 = 86,624,525.90/x
  3. Step 3: Cross multiply
    201,584,909.90x = 302,433,352.05 × 86,624,525.90
  4. Step 4: Simplify right side
    201,584,909.90x = 26,198,145,737,679,044
  5. Step 5: Solve for x
    x = 26,198,145,737,679,044/201,584,909.90
  6. Step 6: Final answer
    x = 129,960,847.52

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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.