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Finding the Fourth Proportional to 75,408.66, 104,112.72 and 46,758.76

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Solution

The fourth proportional to 75,408.66, 104,112.72 and 46,758.76 is: 64,557.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,408.66 : 104,112.72 = 46,758.76 : x
  2. Step 2: Convert to fraction form
    75,408.66/104,112.72 = 46,758.76/x
  3. Step 3: Cross multiply
    75,408.66x = 104,112.72 × 46,758.76
  4. Step 4: Simplify right side
    75,408.66x = 4,868,181,427.15
  5. Step 5: Solve for x
    x = 4,868,181,427.15/75,408.66
  6. Step 6: Final answer
    x = 64,557.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.