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Finding the Fourth Proportional to 124,762.75, 187,145.75 and 41,656.75

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Solution

The fourth proportional to 124,762.75, 187,145.75 and 41,656.75 is: 62,485.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,762.75 : 187,145.75 = 41,656.75 : x
  2. Step 2: Convert to fraction form
    124,762.75/187,145.75 = 41,656.75/x
  3. Step 3: Cross multiply
    124,762.75x = 187,145.75 × 41,656.75
  4. Step 4: Simplify right side
    124,762.75x = 7,795,883,721.31
  5. Step 5: Solve for x
    x = 7,795,883,721.31/124,762.75
  6. Step 6: Final answer
    x = 62,485.67

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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.