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Finding the Fourth Proportional to 86,703.47, 130,067.60 and 26,737.02

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Solution

The fourth proportional to 86,703.47, 130,067.60 and 26,737.02 is: 40,109.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,703.47 : 130,067.60 = 26,737.02 : x
  2. Step 2: Convert to fraction form
    86,703.47/130,067.60 = 26,737.02/x
  3. Step 3: Cross multiply
    86,703.47x = 130,067.60 × 26,737.02
  4. Step 4: Simplify right side
    86,703.47x = 3,477,620,022.55
  5. Step 5: Solve for x
    x = 3,477,620,022.55/86,703.47
  6. Step 6: Final answer
    x = 40,109.35

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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.