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Finding the Fourth Proportional to 220,117.75, 330,133.32 and 70,317.67

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Solution

The fourth proportional to 220,117.75, 330,133.32 and 70,317.67 is: 105,462.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,117.75 : 330,133.32 = 70,317.67 : x
  2. Step 2: Convert to fraction form
    220,117.75/330,133.32 = 70,317.67/x
  3. Step 3: Cross multiply
    220,117.75x = 330,133.32 × 70,317.67
  4. Step 4: Simplify right side
    220,117.75x = 23,214,205,645.43
  5. Step 5: Solve for x
    x = 23,214,205,645.43/220,117.75
  6. Step 6: Final answer
    x = 105,462.67

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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.