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Finding the Fourth Proportional to 109,315.70, 163,973.55 and 50,266.70

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Solution

The fourth proportional to 109,315.70, 163,973.55 and 50,266.70 is: 75,400.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,315.70 : 163,973.55 = 50,266.70 : x
  2. Step 2: Convert to fraction form
    109,315.70/163,973.55 = 50,266.70/x
  3. Step 3: Cross multiply
    109,315.70x = 163,973.55 × 50,266.70
  4. Step 4: Simplify right side
    109,315.70x = 8,242,409,245.79
  5. Step 5: Solve for x
    x = 8,242,409,245.79/109,315.70
  6. Step 6: Final answer
    x = 75,400.05

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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.