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Finding the Fourth Proportional to 238,467.53, 357,478.94 and 80,585.57

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Solution

The fourth proportional to 238,467.53, 357,478.94 and 80,585.57 is: 120,803.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,467.53 : 357,478.94 = 80,585.57 : x
  2. Step 2: Convert to fraction form
    238,467.53/357,478.94 = 80,585.57/x
  3. Step 3: Cross multiply
    238,467.53x = 357,478.94 × 80,585.57
  4. Step 4: Simplify right side
    238,467.53x = 28,807,641,952.57
  5. Step 5: Solve for x
    x = 28,807,641,952.57/238,467.53
  6. Step 6: Final answer
    x = 120,803.21

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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.