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Finding the Fourth Proportional to 71,326.80, 106,929.99 and 44,973.45

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Solution

The fourth proportional to 71,326.80, 106,929.99 and 44,973.45 is: 67,422.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,326.80 : 106,929.99 = 44,973.45 : x
  2. Step 2: Convert to fraction form
    71,326.80/106,929.99 = 44,973.45/x
  3. Step 3: Cross multiply
    71,326.80x = 106,929.99 × 44,973.45
  4. Step 4: Simplify right side
    71,326.80x = 4,809,010,558.77
  5. Step 5: Solve for x
    x = 4,809,010,558.77/71,326.80
  6. Step 6: Final answer
    x = 67,422.21

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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.