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Finding the Fourth Proportional to 71,326.73, 98,430.87 and 39,495.62

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Solution

The fourth proportional to 71,326.73, 98,430.87 and 39,495.62 is: 54,503.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,326.73 : 98,430.87 = 39,495.62 : x
  2. Step 2: Convert to fraction form
    71,326.73/98,430.87 = 39,495.62/x
  3. Step 3: Cross multiply
    71,326.73x = 98,430.87 × 39,495.62
  4. Step 4: Simplify right side
    71,326.73x = 3,887,588,237.79
  5. Step 5: Solve for x
    x = 3,887,588,237.79/71,326.73
  6. Step 6: Final answer
    x = 54,503.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.