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Finding the Fourth Proportional to 222,116, 333,208.64 and 72,320.92

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Solution

The fourth proportional to 222,116, 333,208.64 and 72,320.92 is: 108,492.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,116 : 333,208.64 = 72,320.92 : x
  2. Step 2: Convert to fraction form
    222,116/333,208.64 = 72,320.92/x
  3. Step 3: Cross multiply
    222,116x = 333,208.64 × 72,320.92
  4. Step 4: Simplify right side
    222,116x = 24,097,955,396.75
  5. Step 5: Solve for x
    x = 24,097,955,396.75/222,116
  6. Step 6: Final answer
    x = 108,492.66

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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.