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Finding the Fourth Proportional to 70,362.56, 105,569.64 and 37,081.28

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Solution

The fourth proportional to 70,362.56, 105,569.64 and 37,081.28 is: 55,635.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,362.56 : 105,569.64 = 37,081.28 : x
  2. Step 2: Convert to fraction form
    70,362.56/105,569.64 = 37,081.28/x
  3. Step 3: Cross multiply
    70,362.56x = 105,569.64 × 37,081.28
  4. Step 4: Simplify right side
    70,362.56x = 3,914,657,380.34
  5. Step 5: Solve for x
    x = 3,914,657,380.34/70,362.56
  6. Step 6: Final answer
    x = 55,635.52

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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.