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Finding the Fourth Proportional to 70,065, 96,689.70 and 44,914.50

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Solution

The fourth proportional to 70,065, 96,689.70 and 44,914.50 is: 61,982.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,065 : 96,689.70 = 44,914.50 : x
  2. Step 2: Convert to fraction form
    70,065/96,689.70 = 44,914.50/x
  3. Step 3: Cross multiply
    70,065x = 96,689.70 × 44,914.50
  4. Step 4: Simplify right side
    70,065x = 4,342,769,530.65
  5. Step 5: Solve for x
    x = 4,342,769,530.65/70,065
  6. Step 6: Final answer
    x = 61,982.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.