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Finding the Fourth Proportional to 92,723.40, 139,085.10 and 46,067.40

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Solution

The fourth proportional to 92,723.40, 139,085.10 and 46,067.40 is: 69,101.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,723.40 : 139,085.10 = 46,067.40 : x
  2. Step 2: Convert to fraction form
    92,723.40/139,085.10 = 46,067.40/x
  3. Step 3: Cross multiply
    92,723.40x = 139,085.10 × 46,067.40
  4. Step 4: Simplify right side
    92,723.40x = 6,407,288,935.74
  5. Step 5: Solve for x
    x = 6,407,288,935.74/92,723.40
  6. Step 6: Final answer
    x = 69,101.10

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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.