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Finding the Fourth Proportional to 155,892,529.80, 218,607,859.80 and 155,892,529.80

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Solution

The fourth proportional to 155,892,529.80, 218,607,859.80 and 155,892,529.80 is: 218,607,859.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,892,529.80 : 218,607,859.80 = 155,892,529.80 : x
  2. Step 2: Convert to fraction form
    155,892,529.80/218,607,859.80 = 155,892,529.80/x
  3. Step 3: Cross multiply
    155,892,529.80x = 218,607,859.80 × 155,892,529.80
  4. Step 4: Simplify right side
    155,892,529.80x = 34,079,332,298,385,728
  5. Step 5: Solve for x
    x = 34,079,332,298,385,728/155,892,529.80
  6. Step 6: Final answer
    x = 218,607,859.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.