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Finding the Fourth Proportional to 70,237.92, 105,345.12 and 23,490.64

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Solution

The fourth proportional to 70,237.92, 105,345.12 and 23,490.64 is: 35,232.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,237.92 : 105,345.12 = 23,490.64 : x
  2. Step 2: Convert to fraction form
    70,237.92/105,345.12 = 23,490.64/x
  3. Step 3: Cross multiply
    70,237.92x = 105,345.12 × 23,490.64
  4. Step 4: Simplify right side
    70,237.92x = 2,474,624,289.68
  5. Step 5: Solve for x
    x = 2,474,624,289.68/70,237.92
  6. Step 6: Final answer
    x = 35,232.03

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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.