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Finding the Fourth Proportional to 222,597.12, 333,583.68 and 103,987.20

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Solution

The fourth proportional to 222,597.12, 333,583.68 and 103,987.20 is: 155,835.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,597.12 : 333,583.68 = 103,987.20 : x
  2. Step 2: Convert to fraction form
    222,597.12/333,583.68 = 103,987.20/x
  3. Step 3: Cross multiply
    222,597.12x = 333,583.68 × 103,987.20
  4. Step 4: Simplify right side
    222,597.12x = 34,688,432,848.90
  5. Step 5: Solve for x
    x = 34,688,432,848.90/222,597.12
  6. Step 6: Final answer
    x = 155,835.05

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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.