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Finding the Fourth Proportional to 85,600.67, 128,411.93 and 33,025.19

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Solution

The fourth proportional to 85,600.67, 128,411.93 and 33,025.19 is: 49,542.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,600.67 : 128,411.93 = 33,025.19 : x
  2. Step 2: Convert to fraction form
    85,600.67/128,411.93 = 33,025.19/x
  3. Step 3: Cross multiply
    85,600.67x = 128,411.93 × 33,025.19
  4. Step 4: Simplify right side
    85,600.67x = 4,240,827,827.02
  5. Step 5: Solve for x
    x = 4,240,827,827.02/85,600.67
  6. Step 6: Final answer
    x = 49,542.00

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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.