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Finding the Fourth Proportional to 75,428.58, 104,091.48 and 41,894.58

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Solution

The fourth proportional to 75,428.58, 104,091.48 and 41,894.58 is: 57,814.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,428.58 : 104,091.48 = 41,894.58 : x
  2. Step 2: Convert to fraction form
    75,428.58/104,091.48 = 41,894.58/x
  3. Step 3: Cross multiply
    75,428.58x = 104,091.48 × 41,894.58
  4. Step 4: Simplify right side
    75,428.58x = 4,360,868,836.18
  5. Step 5: Solve for x
    x = 4,360,868,836.18/75,428.58
  6. Step 6: Final answer
    x = 57,814.54

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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.