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Finding the Fourth Proportional to 265,745,284.80, 398,617,927.20 and 149,040,841.20

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Solution

The fourth proportional to 265,745,284.80, 398,617,927.20 and 149,040,841.20 is: 223,561,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,745,284.80 : 398,617,927.20 = 149,040,841.20 : x
  2. Step 2: Convert to fraction form
    265,745,284.80/398,617,927.20 = 149,040,841.20/x
  3. Step 3: Cross multiply
    265,745,284.80x = 398,617,927.20 × 149,040,841.20
  4. Step 4: Simplify right side
    265,745,284.80x = 59,410,351,187,288,352
  5. Step 5: Solve for x
    x = 59,410,351,187,288,352/265,745,284.80
  6. Step 6: Final answer
    x = 223,561,261.80

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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.