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Finding the Fourth Proportional to 102,791.48, 141,852.48 and 57,471.08

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Solution

The fourth proportional to 102,791.48, 141,852.48 and 57,471.08 is: 79,310.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,791.48 : 141,852.48 = 57,471.08 : x
  2. Step 2: Convert to fraction form
    102,791.48/141,852.48 = 57,471.08/x
  3. Step 3: Cross multiply
    102,791.48x = 141,852.48 × 57,471.08
  4. Step 4: Simplify right side
    102,791.48x = 8,152,415,226.28
  5. Step 5: Solve for x
    x = 8,152,415,226.28/102,791.48
  6. Step 6: Final answer
    x = 79,310.22

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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.