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Finding the Fourth Proportional to 71,316.98, 98,418.93 and 39,052.95

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Solution

The fourth proportional to 71,316.98, 98,418.93 and 39,052.95 is: 53,893.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,316.98 : 98,418.93 = 39,052.95 : x
  2. Step 2: Convert to fraction form
    71,316.98/98,418.93 = 39,052.95/x
  3. Step 3: Cross multiply
    71,316.98x = 98,418.93 × 39,052.95
  4. Step 4: Simplify right side
    71,316.98x = 3,843,549,357.08
  5. Step 5: Solve for x
    x = 3,843,549,357.08/71,316.98
  6. Step 6: Final answer
    x = 53,893.89

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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.