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Finding the Fourth Proportional to 70,962.81, 106,226.85 and 45,953.08

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Solution

The fourth proportional to 70,962.81, 106,226.85 and 45,953.08 is: 68,788.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,962.81 : 106,226.85 = 45,953.08 : x
  2. Step 2: Convert to fraction form
    70,962.81/106,226.85 = 45,953.08/x
  3. Step 3: Cross multiply
    70,962.81x = 106,226.85 × 45,953.08
  4. Step 4: Simplify right side
    70,962.81x = 4,881,450,936.20
  5. Step 5: Solve for x
    x = 4,881,450,936.20/70,962.81
  6. Step 6: Final answer
    x = 68,788.86

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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.