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Finding the Fourth Proportional to 92,804.76, 128,073.41 and 54,557.31

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Solution

The fourth proportional to 92,804.76, 128,073.41 and 54,557.31 is: 75,290.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,804.76 : 128,073.41 = 54,557.31 : x
  2. Step 2: Convert to fraction form
    92,804.76/128,073.41 = 54,557.31/x
  3. Step 3: Cross multiply
    92,804.76x = 128,073.41 × 54,557.31
  4. Step 4: Simplify right side
    92,804.76x = 6,987,340,732.13
  5. Step 5: Solve for x
    x = 6,987,340,732.13/92,804.76
  6. Step 6: Final answer
    x = 75,290.76

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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.