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Finding the Fourth Proportional to 104,072.68, 143,619.60 and 56,325.64

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Solution

The fourth proportional to 104,072.68, 143,619.60 and 56,325.64 is: 77,729.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,072.68 : 143,619.60 = 56,325.64 : x
  2. Step 2: Convert to fraction form
    104,072.68/143,619.60 = 56,325.64/x
  3. Step 3: Cross multiply
    104,072.68x = 143,619.60 × 56,325.64
  4. Step 4: Simplify right side
    104,072.68x = 8,089,465,886.54
  5. Step 5: Solve for x
    x = 8,089,465,886.54/104,072.68
  6. Step 6: Final answer
    x = 77,729.01

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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.