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Finding the Fourth Proportional to 57,702.66, 86,326.25 and 43,703.03

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Solution

The fourth proportional to 57,702.66, 86,326.25 and 43,703.03 is: 65,382.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,702.66 : 86,326.25 = 43,703.03 : x
  2. Step 2: Convert to fraction form
    57,702.66/86,326.25 = 43,703.03/x
  3. Step 3: Cross multiply
    57,702.66x = 86,326.25 × 43,703.03
  4. Step 4: Simplify right side
    57,702.66x = 3,772,718,043.39
  5. Step 5: Solve for x
    x = 3,772,718,043.39/57,702.66
  6. Step 6: Final answer
    x = 65,382.05

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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.