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Finding the Fourth Proportional to 70,536.57, 105,681.81 and 58,765.96

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Solution

The fourth proportional to 70,536.57, 105,681.81 and 58,765.96 is: 88,046.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,536.57 : 105,681.81 = 58,765.96 : x
  2. Step 2: Convert to fraction form
    70,536.57/105,681.81 = 58,765.96/x
  3. Step 3: Cross multiply
    70,536.57x = 105,681.81 × 58,765.96
  4. Step 4: Simplify right side
    70,536.57x = 6,210,493,019.19
  5. Step 5: Solve for x
    x = 6,210,493,019.19/70,536.57
  6. Step 6: Final answer
    x = 88,046.43

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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.