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Finding the Fourth Proportional to 71,357.61, 98,473.62 and 39,091.52

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Solution

The fourth proportional to 71,357.61, 98,473.62 and 39,091.52 is: 53,946.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,357.61 : 98,473.62 = 39,091.52 : x
  2. Step 2: Convert to fraction form
    71,357.61/98,473.62 = 39,091.52/x
  3. Step 3: Cross multiply
    71,357.61x = 98,473.62 × 39,091.52
  4. Step 4: Simplify right side
    71,357.61x = 3,849,482,993.33
  5. Step 5: Solve for x
    x = 3,849,482,993.33/71,357.61
  6. Step 6: Final answer
    x = 53,946.36

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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.