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Finding the Fourth Proportional to 75,302.69, 103,916.16 and 41,768.69

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Solution

The fourth proportional to 75,302.69, 103,916.16 and 41,768.69 is: 57,639.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,302.69 : 103,916.16 = 41,768.69 : x
  2. Step 2: Convert to fraction form
    75,302.69/103,916.16 = 41,768.69/x
  3. Step 3: Cross multiply
    75,302.69x = 103,916.16 × 41,768.69
  4. Step 4: Simplify right side
    75,302.69x = 4,340,441,353.45
  5. Step 5: Solve for x
    x = 4,340,441,353.45/75,302.69
  6. Step 6: Final answer
    x = 57,639.93

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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.