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Finding the Fourth Proportional to 222,739,661.80, 334,109,492.70 and 120,702,989.80

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Solution

The fourth proportional to 222,739,661.80, 334,109,492.70 and 120,702,989.80 is: 181,054,484.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,739,661.80 : 334,109,492.70 = 120,702,989.80 : x
  2. Step 2: Convert to fraction form
    222,739,661.80/334,109,492.70 = 120,702,989.80/x
  3. Step 3: Cross multiply
    222,739,661.80x = 334,109,492.70 × 120,702,989.80
  4. Step 4: Simplify right side
    222,739,661.80x = 40,328,014,689,451,272
  5. Step 5: Solve for x
    x = 40,328,014,689,451,272/222,739,661.80
  6. Step 6: Final answer
    x = 181,054,484.70

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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.