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Finding the Fourth Proportional to 104,907.60, 157,407.91 and 54,975.83

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Solution

The fourth proportional to 104,907.60, 157,407.91 and 54,975.83 is: 82,488.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,907.60 : 157,407.91 = 54,975.83 : x
  2. Step 2: Convert to fraction form
    104,907.60/157,407.91 = 54,975.83/x
  3. Step 3: Cross multiply
    104,907.60x = 157,407.91 × 54,975.83
  4. Step 4: Simplify right side
    104,907.60x = 8,653,629,576.34
  5. Step 5: Solve for x
    x = 8,653,629,576.34/104,907.60
  6. Step 6: Final answer
    x = 82,488.11

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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.