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Finding the Fourth Proportional to 56,187.36, 77,893.56 and 53,191.08

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Solution

The fourth proportional to 56,187.36, 77,893.56 and 53,191.08 is: 73,739.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,187.36 : 77,893.56 = 53,191.08 : x
  2. Step 2: Convert to fraction form
    56,187.36/77,893.56 = 53,191.08/x
  3. Step 3: Cross multiply
    56,187.36x = 77,893.56 × 53,191.08
  4. Step 4: Simplify right side
    56,187.36x = 4,143,242,581.44
  5. Step 5: Solve for x
    x = 4,143,242,581.44/56,187.36
  6. Step 6: Final answer
    x = 73,739.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.