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Finding the Fourth Proportional to 75,083.20, 112,624.80 and 73,916.80

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Solution

The fourth proportional to 75,083.20, 112,624.80 and 73,916.80 is: 110,875.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,083.20 : 112,624.80 = 73,916.80 : x
  2. Step 2: Convert to fraction form
    75,083.20/112,624.80 = 73,916.80/x
  3. Step 3: Cross multiply
    75,083.20x = 112,624.80 × 73,916.80
  4. Step 4: Simplify right side
    75,083.20x = 8,324,864,816.64
  5. Step 5: Solve for x
    x = 8,324,864,816.64/75,083.20
  6. Step 6: Final answer
    x = 110,875.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.