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Finding the Fourth Proportional to 75,858.36, 113,210.72 and 67,451.01

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Solution

The fourth proportional to 75,858.36, 113,210.72 and 67,451.01 is: 100,663.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,858.36 : 113,210.72 = 67,451.01 : x
  2. Step 2: Convert to fraction form
    75,858.36/113,210.72 = 67,451.01/x
  3. Step 3: Cross multiply
    75,858.36x = 113,210.72 × 67,451.01
  4. Step 4: Simplify right side
    75,858.36x = 7,636,177,069.57
  5. Step 5: Solve for x
    x = 7,636,177,069.57/75,858.36
  6. Step 6: Final answer
    x = 100,663.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.