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Finding the Fourth Proportional to 70,107.96, 96,688.62 and 62,461.56

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Solution

The fourth proportional to 70,107.96, 96,688.62 and 62,461.56 is: 86,143.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,107.96 : 96,688.62 = 62,461.56 : x
  2. Step 2: Convert to fraction form
    70,107.96/96,688.62 = 62,461.56/x
  3. Step 3: Cross multiply
    70,107.96x = 96,688.62 × 62,461.56
  4. Step 4: Simplify right side
    70,107.96x = 6,039,322,039.45
  5. Step 5: Solve for x
    x = 6,039,322,039.45/70,107.96
  6. Step 6: Final answer
    x = 86,143.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.