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Finding the Fourth Proportional to 311,855.10, 467,782.65 and 101,514.30

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Solution

The fourth proportional to 311,855.10, 467,782.65 and 101,514.30 is: 152,271.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,855.10 : 467,782.65 = 101,514.30 : x
  2. Step 2: Convert to fraction form
    311,855.10/467,782.65 = 101,514.30/x
  3. Step 3: Cross multiply
    311,855.10x = 467,782.65 × 101,514.30
  4. Step 4: Simplify right side
    311,855.10x = 47,486,628,266.90
  5. Step 5: Solve for x
    x = 47,486,628,266.90/311,855.10
  6. Step 6: Final answer
    x = 152,271.45

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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.