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Finding the Fourth Proportional to 70,620.48, 105,937.70 and 23,216.35

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Solution

The fourth proportional to 70,620.48, 105,937.70 and 23,216.35 is: 34,826.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,620.48 : 105,937.70 = 23,216.35 : x
  2. Step 2: Convert to fraction form
    70,620.48/105,937.70 = 23,216.35/x
  3. Step 3: Cross multiply
    70,620.48x = 105,937.70 × 23,216.35
  4. Step 4: Simplify right side
    70,620.48x = 2,459,486,721.40
  5. Step 5: Solve for x
    x = 2,459,486,721.40/70,620.48
  6. Step 6: Final answer
    x = 34,826.82

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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.