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Finding the Fourth Proportional to 248,907.40, 343,471.80 and 141,452.80

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Solution

The fourth proportional to 248,907.40, 343,471.80 and 141,452.80 is: 195,193.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,907.40 : 343,471.80 = 141,452.80 : x
  2. Step 2: Convert to fraction form
    248,907.40/343,471.80 = 141,452.80/x
  3. Step 3: Cross multiply
    248,907.40x = 343,471.80 × 141,452.80
  4. Step 4: Simplify right side
    248,907.40x = 48,585,047,831.04
  5. Step 5: Solve for x
    x = 48,585,047,831.04/248,907.40
  6. Step 6: Final answer
    x = 195,193.26

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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.