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Finding the Fourth Proportional to 70,179.84, 105,285.56 and 23,431.50

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Solution

The fourth proportional to 70,179.84, 105,285.56 and 23,431.50 is: 35,152.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,179.84 : 105,285.56 = 23,431.50 : x
  2. Step 2: Convert to fraction form
    70,179.84/105,285.56 = 23,431.50/x
  3. Step 3: Cross multiply
    70,179.84x = 105,285.56 × 23,431.50
  4. Step 4: Simplify right side
    70,179.84x = 2,466,998,481.98
  5. Step 5: Solve for x
    x = 2,466,998,481.98/70,179.84
  6. Step 6: Final answer
    x = 35,152.52

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1.5x scale

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.