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Finding the Fourth Proportional to 194,379.60, 291,569.40 and 69,704.40

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Solution

The fourth proportional to 194,379.60, 291,569.40 and 69,704.40 is: 104,556.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,379.60 : 291,569.40 = 69,704.40 : x
  2. Step 2: Convert to fraction form
    194,379.60/291,569.40 = 69,704.40/x
  3. Step 3: Cross multiply
    194,379.60x = 291,569.40 × 69,704.40
  4. Step 4: Simplify right side
    194,379.60x = 20,323,670,085.36
  5. Step 5: Solve for x
    x = 20,323,670,085.36/194,379.60
  6. Step 6: Final answer
    x = 104,556.60

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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.