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Finding the Fourth Proportional to 436,143.60, 654,258.60 and 151,790.40

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Solution

The fourth proportional to 436,143.60, 654,258.60 and 151,790.40 is: 227,700.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,143.60 : 654,258.60 = 151,790.40 : x
  2. Step 2: Convert to fraction form
    436,143.60/654,258.60 = 151,790.40/x
  3. Step 3: Cross multiply
    436,143.60x = 654,258.60 × 151,790.40
  4. Step 4: Simplify right side
    436,143.60x = 99,310,174,597.44
  5. Step 5: Solve for x
    x = 99,310,174,597.44/436,143.60
  6. Step 6: Final answer
    x = 227,700.63

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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.