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Finding the Fourth Proportional to 85,597.28, 128,326.33 and 35,714.54

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Solution

The fourth proportional to 85,597.28, 128,326.33 and 35,714.54 is: 53,542.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,597.28 : 128,326.33 = 35,714.54 : x
  2. Step 2: Convert to fraction form
    85,597.28/128,326.33 = 35,714.54/x
  3. Step 3: Cross multiply
    85,597.28x = 128,326.33 × 35,714.54
  4. Step 4: Simplify right side
    85,597.28x = 4,583,115,845.84
  5. Step 5: Solve for x
    x = 4,583,115,845.84/85,597.28
  6. Step 6: Final answer
    x = 53,542.77

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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.