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Finding the Fourth Proportional to 70,848.20, 106,337.90 and 35,812.36

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Solution

The fourth proportional to 70,848.20, 106,337.90 and 35,812.36 is: 53,751.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,848.20 : 106,337.90 = 35,812.36 : x
  2. Step 2: Convert to fraction form
    70,848.20/106,337.90 = 35,812.36/x
  3. Step 3: Cross multiply
    70,848.20x = 106,337.90 × 35,812.36
  4. Step 4: Simplify right side
    70,848.20x = 3,808,211,156.44
  5. Step 5: Solve for x
    x = 3,808,211,156.44/70,848.20
  6. Step 6: Final answer
    x = 53,751.70

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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.