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Finding the Fourth Proportional to 139,328.09, 209,000.03 and 44,566.59

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Solution

The fourth proportional to 139,328.09, 209,000.03 and 44,566.59 is: 66,852.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,328.09 : 209,000.03 = 44,566.59 : x
  2. Step 2: Convert to fraction form
    139,328.09/209,000.03 = 44,566.59/x
  3. Step 3: Cross multiply
    139,328.09x = 209,000.03 × 44,566.59
  4. Step 4: Simplify right side
    139,328.09x = 9,314,418,647.00
  5. Step 5: Solve for x
    x = 9,314,418,647.00/139,328.09
  6. Step 6: Final answer
    x = 66,852.41

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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.