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Finding the Fourth Proportional to 122,326.10, 168,820.21 and 67,883.40

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Solution

The fourth proportional to 122,326.10, 168,820.21 and 67,883.40 is: 93,684.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,326.10 : 168,820.21 = 67,883.40 : x
  2. Step 2: Convert to fraction form
    122,326.10/168,820.21 = 67,883.40/x
  3. Step 3: Cross multiply
    122,326.10x = 168,820.21 × 67,883.40
  4. Step 4: Simplify right side
    122,326.10x = 11,460,089,843.51
  5. Step 5: Solve for x
    x = 11,460,089,843.51/122,326.10
  6. Step 6: Final answer
    x = 93,684.75

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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.