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Finding the Fourth Proportional to 70,745.16, 105,984.05 and 41,807.45

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Solution

The fourth proportional to 70,745.16, 105,984.05 and 41,807.45 is: 62,632.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,745.16 : 105,984.05 = 41,807.45 : x
  2. Step 2: Convert to fraction form
    70,745.16/105,984.05 = 41,807.45/x
  3. Step 3: Cross multiply
    70,745.16x = 105,984.05 × 41,807.45
  4. Step 4: Simplify right side
    70,745.16x = 4,430,922,662.14
  5. Step 5: Solve for x
    x = 4,430,922,662.14/70,745.16
  6. Step 6: Final answer
    x = 62,632.17

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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.