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Finding the Fourth Proportional to 79,390.47, 118,974.51 and 59,656.44

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Solution

The fourth proportional to 79,390.47, 118,974.51 and 59,656.44 is: 89,401.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,390.47 : 118,974.51 = 59,656.44 : x
  2. Step 2: Convert to fraction form
    79,390.47/118,974.51 = 59,656.44/x
  3. Step 3: Cross multiply
    79,390.47x = 118,974.51 × 59,656.44
  4. Step 4: Simplify right side
    79,390.47x = 7,097,595,717.34
  5. Step 5: Solve for x
    x = 7,097,595,717.34/79,390.47
  6. Step 6: Final answer
    x = 89,401.10

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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.