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Finding the Fourth Proportional to 78,093.44, 117,316.80 and 55,955.84

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Solution

The fourth proportional to 78,093.44, 117,316.80 and 55,955.84 is: 84,060.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,093.44 : 117,316.80 = 55,955.84 : x
  2. Step 2: Convert to fraction form
    78,093.44/117,316.80 = 55,955.84/x
  3. Step 3: Cross multiply
    78,093.44x = 117,316.80 × 55,955.84
  4. Step 4: Simplify right side
    78,093.44x = 6,564,560,090.11
  5. Step 5: Solve for x
    x = 6,564,560,090.11/78,093.44
  6. Step 6: Final answer
    x = 84,060.33

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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.