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Finding the Fourth Proportional to 248,657.50, 372,543.99 and 143,258.68

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Solution

The fourth proportional to 248,657.50, 372,543.99 and 143,258.68 is: 214,633.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,657.50 : 372,543.99 = 143,258.68 : x
  2. Step 2: Convert to fraction form
    248,657.50/372,543.99 = 143,258.68/x
  3. Step 3: Cross multiply
    248,657.50x = 372,543.99 × 143,258.68
  4. Step 4: Simplify right side
    248,657.50x = 53,370,160,249.33
  5. Step 5: Solve for x
    x = 53,370,160,249.33/248,657.50
  6. Step 6: Final answer
    x = 214,633.22

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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.