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Finding the Fourth Proportional to 75,905.94, 104,798.97 and 49,089.54

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Solution

The fourth proportional to 75,905.94, 104,798.97 and 49,089.54 is: 67,775.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,905.94 : 104,798.97 = 49,089.54 : x
  2. Step 2: Convert to fraction form
    75,905.94/104,798.97 = 49,089.54/x
  3. Step 3: Cross multiply
    75,905.94x = 104,798.97 × 49,089.54
  4. Step 4: Simplify right side
    75,905.94x = 5,144,533,229.77
  5. Step 5: Solve for x
    x = 5,144,533,229.77/75,905.94
  6. Step 6: Final answer
    x = 67,775.11

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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.