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Finding the Fourth Proportional to 75,443.92, 104,144.54 and 50,920.06

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Solution

The fourth proportional to 75,443.92, 104,144.54 and 50,920.06 is: 70,291.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,443.92 : 104,144.54 = 50,920.06 : x
  2. Step 2: Convert to fraction form
    75,443.92/104,144.54 = 50,920.06/x
  3. Step 3: Cross multiply
    75,443.92x = 104,144.54 × 50,920.06
  4. Step 4: Simplify right side
    75,443.92x = 5,303,045,905.78
  5. Step 5: Solve for x
    x = 5,303,045,905.78/75,443.92
  6. Step 6: Final answer
    x = 70,291.23

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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.