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Finding the Fourth Proportional to 83,393.08, 125,090.04 and 21,063.64

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Solution

The fourth proportional to 83,393.08, 125,090.04 and 21,063.64 is: 31,595.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,393.08 : 125,090.04 = 21,063.64 : x
  2. Step 2: Convert to fraction form
    83,393.08/125,090.04 = 21,063.64/x
  3. Step 3: Cross multiply
    83,393.08x = 125,090.04 × 21,063.64
  4. Step 4: Simplify right side
    83,393.08x = 2,634,851,570.15
  5. Step 5: Solve for x
    x = 2,634,851,570.15/83,393.08
  6. Step 6: Final answer
    x = 31,595.57

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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.