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Finding the Fourth Proportional to 223,993,811.60, 335,990,717.40 and 191,115,328.40

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Solution

The fourth proportional to 223,993,811.60, 335,990,717.40 and 191,115,328.40 is: 286,672,992.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,993,811.60 : 335,990,717.40 = 191,115,328.40 : x
  2. Step 2: Convert to fraction form
    223,993,811.60/335,990,717.40 = 191,115,328.40/x
  3. Step 3: Cross multiply
    223,993,811.60x = 335,990,717.40 × 191,115,328.40
  4. Step 4: Simplify right side
    223,993,811.60x = 64,212,976,295,252,592
  5. Step 5: Solve for x
    x = 64,212,976,295,252,592/223,993,811.60
  6. Step 6: Final answer
    x = 286,672,992.60

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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.