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Finding the Fourth Proportional to 111,903.95, 167,683.59 and 51,895.50

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Solution

The fourth proportional to 111,903.95, 167,683.59 and 51,895.50 is: 77,763.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,903.95 : 167,683.59 = 51,895.50 : x
  2. Step 2: Convert to fraction form
    111,903.95/167,683.59 = 51,895.50/x
  3. Step 3: Cross multiply
    111,903.95x = 167,683.59 × 51,895.50
  4. Step 4: Simplify right side
    111,903.95x = 8,702,023,744.85
  5. Step 5: Solve for x
    x = 8,702,023,744.85/111,903.95
  6. Step 6: Final answer
    x = 77,763.33

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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.