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Finding the Fourth Proportional to 222,730.10, 334,059.60 and 64,921.64

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Solution

The fourth proportional to 222,730.10, 334,059.60 and 64,921.64 is: 97,372.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,730.10 : 334,059.60 = 64,921.64 : x
  2. Step 2: Convert to fraction form
    222,730.10/334,059.60 = 64,921.64/x
  3. Step 3: Cross multiply
    222,730.10x = 334,059.60 × 64,921.64
  4. Step 4: Simplify right side
    222,730.10x = 21,687,697,089.74
  5. Step 5: Solve for x
    x = 21,687,697,089.74/222,730.10
  6. Step 6: Final answer
    x = 97,372.10

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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.