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Finding the Fourth Proportional to 122,980.26, 169,683.58 and 69,254.58

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Solution

The fourth proportional to 122,980.26, 169,683.58 and 69,254.58 is: 95,554.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,980.26 : 169,683.58 = 69,254.58 : x
  2. Step 2: Convert to fraction form
    122,980.26/169,683.58 = 69,254.58/x
  3. Step 3: Cross multiply
    122,980.26x = 169,683.58 × 69,254.58
  4. Step 4: Simplify right side
    122,980.26x = 11,751,365,065.80
  5. Step 5: Solve for x
    x = 11,751,365,065.80/122,980.26
  6. Step 6: Final answer
    x = 95,554.89

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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.