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Finding the Fourth Proportional to 70,602.08, 105,903.16 and 44,325.28

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Solution

The fourth proportional to 70,602.08, 105,903.16 and 44,325.28 is: 66,487.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,602.08 : 105,903.16 = 44,325.28 : x
  2. Step 2: Convert to fraction form
    70,602.08/105,903.16 = 44,325.28/x
  3. Step 3: Cross multiply
    70,602.08x = 105,903.16 × 44,325.28
  4. Step 4: Simplify right side
    70,602.08x = 4,694,187,219.88
  5. Step 5: Solve for x
    x = 4,694,187,219.88/70,602.08
  6. Step 6: Final answer
    x = 66,487.95

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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.