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Finding the Fourth Proportional to 183,676.20, 275,514.30 and 78,700.20

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Solution

The fourth proportional to 183,676.20, 275,514.30 and 78,700.20 is: 118,050.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,676.20 : 275,514.30 = 78,700.20 : x
  2. Step 2: Convert to fraction form
    183,676.20/275,514.30 = 78,700.20/x
  3. Step 3: Cross multiply
    183,676.20x = 275,514.30 × 78,700.20
  4. Step 4: Simplify right side
    183,676.20x = 21,683,030,512.86
  5. Step 5: Solve for x
    x = 21,683,030,512.86/183,676.20
  6. Step 6: Final answer
    x = 118,050.30

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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.