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Finding the Fourth Proportional to 70,639.56, 105,958.14 and 37,352.52

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Solution

The fourth proportional to 70,639.56, 105,958.14 and 37,352.52 is: 56,028.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,639.56 : 105,958.14 = 37,352.52 : x
  2. Step 2: Convert to fraction form
    70,639.56/105,958.14 = 37,352.52/x
  3. Step 3: Cross multiply
    70,639.56x = 105,958.14 × 37,352.52
  4. Step 4: Simplify right side
    70,639.56x = 3,957,803,543.51
  5. Step 5: Solve for x
    x = 3,957,803,543.51/70,639.56
  6. Step 6: Final answer
    x = 56,028.15

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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.