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Finding the Fourth Proportional to 79,388.47, 118,971.51 and 59,654.44

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Solution

The fourth proportional to 79,388.47, 118,971.51 and 59,654.44 is: 89,398.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,388.47 : 118,971.51 = 59,654.44 : x
  2. Step 2: Convert to fraction form
    79,388.47/118,971.51 = 59,654.44/x
  3. Step 3: Cross multiply
    79,388.47x = 118,971.51 × 59,654.44
  4. Step 4: Simplify right side
    79,388.47x = 7,097,178,805.00
  5. Step 5: Solve for x
    x = 7,097,178,805.00/79,388.47
  6. Step 6: Final answer
    x = 89,398.11

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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.