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Finding the Fourth Proportional to 208,032.60, 312,048.90 and 194,910.60

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Solution

The fourth proportional to 208,032.60, 312,048.90 and 194,910.60 is: 292,365.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,032.60 : 312,048.90 = 194,910.60 : x
  2. Step 2: Convert to fraction form
    208,032.60/312,048.90 = 194,910.60/x
  3. Step 3: Cross multiply
    208,032.60x = 312,048.90 × 194,910.60
  4. Step 4: Simplify right side
    208,032.60x = 60,821,638,328.34
  5. Step 5: Solve for x
    x = 60,821,638,328.34/208,032.60
  6. Step 6: Final answer
    x = 292,365.90

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1.5x scale

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.