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Finding the Fourth Proportional to 70,520.70, 105,817.44 and 46,844.64

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Solution

The fourth proportional to 70,520.70, 105,817.44 and 46,844.64 is: 70,291.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,520.70 : 105,817.44 = 46,844.64 : x
  2. Step 2: Convert to fraction form
    70,520.70/105,817.44 = 46,844.64/x
  3. Step 3: Cross multiply
    70,520.70x = 105,817.44 × 46,844.64
  4. Step 4: Simplify right side
    70,520.70x = 4,956,979,882.52
  5. Step 5: Solve for x
    x = 4,956,979,882.52/70,520.70
  6. Step 6: Final answer
    x = 70,291.13

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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.