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Finding the Fourth Proportional to 70,057.16, 105,101.58 and 23,311.88

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Solution

The fourth proportional to 70,057.16, 105,101.58 and 23,311.88 is: 34,973.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,057.16 : 105,101.58 = 23,311.88 : x
  2. Step 2: Convert to fraction form
    70,057.16/105,101.58 = 23,311.88/x
  3. Step 3: Cross multiply
    70,057.16x = 105,101.58 × 23,311.88
  4. Step 4: Simplify right side
    70,057.16x = 2,450,115,420.77
  5. Step 5: Solve for x
    x = 2,450,115,420.77/70,057.16
  6. Step 6: Final answer
    x = 34,973.09

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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.