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Finding the Fourth Proportional to 222,312.16, 333,503.12 and 72,517.88

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Solution

The fourth proportional to 222,312.16, 333,503.12 and 72,517.88 is: 108,788.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,312.16 : 333,503.12 = 72,517.88 : x
  2. Step 2: Convert to fraction form
    222,312.16/333,503.12 = 72,517.88/x
  3. Step 3: Cross multiply
    222,312.16x = 333,503.12 × 72,517.88
  4. Step 4: Simplify right side
    222,312.16x = 24,184,939,235.79
  5. Step 5: Solve for x
    x = 24,184,939,235.79/222,312.16
  6. Step 6: Final answer
    x = 108,788.20

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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.