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Finding the Fourth Proportional to 248,515.40, 372,821.70 and 106,360.40

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Solution

The fourth proportional to 248,515.40, 372,821.70 and 106,360.40 is: 159,561.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,515.40 : 372,821.70 = 106,360.40 : x
  2. Step 2: Convert to fraction form
    248,515.40/372,821.70 = 106,360.40/x
  3. Step 3: Cross multiply
    248,515.40x = 372,821.70 × 106,360.40
  4. Step 4: Simplify right side
    248,515.40x = 39,653,465,140.68
  5. Step 5: Solve for x
    x = 39,653,465,140.68/248,515.40
  6. Step 6: Final answer
    x = 159,561.40

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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.