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Finding the Fourth Proportional to 240,643.48, 331,847.13 and 160,074.40

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Solution

The fourth proportional to 240,643.48, 331,847.13 and 160,074.40 is: 220,742.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,643.48 : 331,847.13 = 160,074.40 : x
  2. Step 2: Convert to fraction form
    240,643.48/331,847.13 = 160,074.40/x
  3. Step 3: Cross multiply
    240,643.48x = 331,847.13 × 160,074.40
  4. Step 4: Simplify right side
    240,643.48x = 53,120,230,226.47
  5. Step 5: Solve for x
    x = 53,120,230,226.47/240,643.48
  6. Step 6: Final answer
    x = 220,742.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.