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Finding the Fourth Proportional to 70,600.32, 105,905.60 and 29,056.64

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Solution

The fourth proportional to 70,600.32, 105,905.60 and 29,056.64 is: 43,587.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,600.32 : 105,905.60 = 29,056.64 : x
  2. Step 2: Convert to fraction form
    70,600.32/105,905.60 = 29,056.64/x
  3. Step 3: Cross multiply
    70,600.32x = 105,905.60 × 29,056.64
  4. Step 4: Simplify right side
    70,600.32x = 3,077,260,893.18
  5. Step 5: Solve for x
    x = 3,077,260,893.18/70,600.32
  6. Step 6: Final answer
    x = 43,587.07

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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.