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Finding the Fourth Proportional to 70,162.92, 105,210.27 and 23,400

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Solution

The fourth proportional to 70,162.92, 105,210.27 and 23,400 is: 35,088.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,162.92 : 105,210.27 = 23,400 : x
  2. Step 2: Convert to fraction form
    70,162.92/105,210.27 = 23,400/x
  3. Step 3: Cross multiply
    70,162.92x = 105,210.27 × 23,400
  4. Step 4: Simplify right side
    70,162.92x = 2,461,920,318
  5. Step 5: Solve for x
    x = 2,461,920,318/70,162.92
  6. Step 6: Final answer
    x = 35,088.62

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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.