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Finding the Fourth Proportional to 404,183,119.60, 606,274,679.40 and 145,438,274.80

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Solution

The fourth proportional to 404,183,119.60, 606,274,679.40 and 145,438,274.80 is: 218,157,412.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,183,119.60 : 606,274,679.40 = 145,438,274.80 : x
  2. Step 2: Convert to fraction form
    404,183,119.60/606,274,679.40 = 145,438,274.80/x
  3. Step 3: Cross multiply
    404,183,119.60x = 606,274,679.40 × 145,438,274.80
  4. Step 4: Simplify right side
    404,183,119.60x = 88,175,543,426,859,104
  5. Step 5: Solve for x
    x = 88,175,543,426,859,104/404,183,119.60
  6. Step 6: Final answer
    x = 218,157,412.20

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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.