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Finding the Fourth Proportional to 43,219.34, 64,853.60 and 34,509.60

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Solution

The fourth proportional to 43,219.34, 64,853.60 and 34,509.60 is: 51,784.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,219.34 : 64,853.60 = 34,509.60 : x
  2. Step 2: Convert to fraction form
    43,219.34/64,853.60 = 34,509.60/x
  3. Step 3: Cross multiply
    43,219.34x = 64,853.60 × 34,509.60
  4. Step 4: Simplify right side
    43,219.34x = 2,238,071,622.01
  5. Step 5: Solve for x
    x = 2,238,071,622.01/43,219.34
  6. Step 6: Final answer
    x = 51,784.04

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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.