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Finding the Fourth Proportional to 121,009.88, 167,015.58 and 70,016.60

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Solution

The fourth proportional to 121,009.88, 167,015.58 and 70,016.60 is: 96,635.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,009.88 : 167,015.58 = 70,016.60 : x
  2. Step 2: Convert to fraction form
    121,009.88/167,015.58 = 70,016.60/x
  3. Step 3: Cross multiply
    121,009.88x = 167,015.58 × 70,016.60
  4. Step 4: Simplify right side
    121,009.88x = 11,693,863,058.63
  5. Step 5: Solve for x
    x = 11,693,863,058.63/121,009.88
  6. Step 6: Final answer
    x = 96,635.61

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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.