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Finding the Fourth Proportional to 293,181.20, 439,820.40 and 124,782.20

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Solution

The fourth proportional to 293,181.20, 439,820.40 and 124,782.20 is: 187,193.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,181.20 : 439,820.40 = 124,782.20 : x
  2. Step 2: Convert to fraction form
    293,181.20/439,820.40 = 124,782.20/x
  3. Step 3: Cross multiply
    293,181.20x = 439,820.40 × 124,782.20
  4. Step 4: Simplify right side
    293,181.20x = 54,881,757,116.88
  5. Step 5: Solve for x
    x = 54,881,757,116.88/293,181.20
  6. Step 6: Final answer
    x = 187,193.98

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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.