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Finding the Fourth Proportional to 202,136,303.70, 303,204,455.55 and 72,748,134.90

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Solution

The fourth proportional to 202,136,303.70, 303,204,455.55 and 72,748,134.90 is: 109,122,202.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,136,303.70 : 303,204,455.55 = 72,748,134.90 : x
  2. Step 2: Convert to fraction form
    202,136,303.70/303,204,455.55 = 72,748,134.90/x
  3. Step 3: Cross multiply
    202,136,303.70x = 303,204,455.55 × 72,748,134.90
  4. Step 4: Simplify right side
    202,136,303.70x = 22,057,558,634,632,456
  5. Step 5: Solve for x
    x = 22,057,558,634,632,456/202,136,303.70
  6. Step 6: Final answer
    x = 109,122,202.35

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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.