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Finding the Fourth Proportional to 260,515.80, 390,773.70 and 94,282.20

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Solution

The fourth proportional to 260,515.80, 390,773.70 and 94,282.20 is: 141,423.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,515.80 : 390,773.70 = 94,282.20 : x
  2. Step 2: Convert to fraction form
    260,515.80/390,773.70 = 94,282.20/x
  3. Step 3: Cross multiply
    260,515.80x = 390,773.70 × 94,282.20
  4. Step 4: Simplify right side
    260,515.80x = 36,843,004,138.14
  5. Step 5: Solve for x
    x = 36,843,004,138.14/260,515.80
  6. Step 6: Final answer
    x = 141,423.30

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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.