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Finding the Fourth Proportional to 75,424.91, 104,083 and 45,226.90

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Solution

The fourth proportional to 75,424.91, 104,083 and 45,226.90 is: 62,411.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,424.91 : 104,083 = 45,226.90 : x
  2. Step 2: Convert to fraction form
    75,424.91/104,083 = 45,226.90/x
  3. Step 3: Cross multiply
    75,424.91x = 104,083 × 45,226.90
  4. Step 4: Simplify right side
    75,424.91x = 4,707,351,432.70
  5. Step 5: Solve for x
    x = 4,707,351,432.70/75,424.91
  6. Step 6: Final answer
    x = 62,411.10

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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.