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Finding the Fourth Proportional to 71,802.45, 107,703.95 and 25,055.33

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Solution

The fourth proportional to 71,802.45, 107,703.95 and 25,055.33 is: 37,583.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,802.45 : 107,703.95 = 25,055.33 : x
  2. Step 2: Convert to fraction form
    71,802.45/107,703.95 = 25,055.33/x
  3. Step 3: Cross multiply
    71,802.45x = 107,703.95 × 25,055.33
  4. Step 4: Simplify right side
    71,802.45x = 2,698,557,345.76
  5. Step 5: Solve for x
    x = 2,698,557,345.76/71,802.45
  6. Step 6: Final answer
    x = 37,583.08

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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.