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Finding the Fourth Proportional to 104,641.42, 156,958.62 and 45,477.08

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Solution

The fourth proportional to 104,641.42, 156,958.62 and 45,477.08 is: 68,214.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,641.42 : 156,958.62 = 45,477.08 : x
  2. Step 2: Convert to fraction form
    104,641.42/156,958.62 = 45,477.08/x
  3. Step 3: Cross multiply
    104,641.42x = 156,958.62 × 45,477.08
  4. Step 4: Simplify right side
    104,641.42x = 7,138,019,718.43
  5. Step 5: Solve for x
    x = 7,138,019,718.43/104,641.42
  6. Step 6: Final answer
    x = 68,214.09

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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.