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Finding the Fourth Proportional to 121,071.44, 167,080.92 and 70,799.60

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Solution

The fourth proportional to 121,071.44, 167,080.92 and 70,799.60 is: 97,704.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,071.44 : 167,080.92 = 70,799.60 : x
  2. Step 2: Convert to fraction form
    121,071.44/167,080.92 = 70,799.60/x
  3. Step 3: Cross multiply
    121,071.44x = 167,080.92 × 70,799.60
  4. Step 4: Simplify right side
    121,071.44x = 11,829,262,303.63
  5. Step 5: Solve for x
    x = 11,829,262,303.63/121,071.44
  6. Step 6: Final answer
    x = 97,704.81

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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.