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Finding the Fourth Proportional to 75,511.70, 113,170.35 and 45,898.10

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Solution

The fourth proportional to 75,511.70, 113,170.35 and 45,898.10 is: 68,788.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,511.70 : 113,170.35 = 45,898.10 : x
  2. Step 2: Convert to fraction form
    75,511.70/113,170.35 = 45,898.10/x
  3. Step 3: Cross multiply
    75,511.70x = 113,170.35 × 45,898.10
  4. Step 4: Simplify right side
    75,511.70x = 5,194,304,041.34
  5. Step 5: Solve for x
    x = 5,194,304,041.34/75,511.70
  6. Step 6: Final answer
    x = 68,788.07

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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.