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Finding the Fourth Proportional to 109,312.20, 163,968.30 and 50,263.20

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Solution

The fourth proportional to 109,312.20, 163,968.30 and 50,263.20 is: 75,394.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,312.20 : 163,968.30 = 50,263.20 : x
  2. Step 2: Convert to fraction form
    109,312.20/163,968.30 = 50,263.20/x
  3. Step 3: Cross multiply
    109,312.20x = 163,968.30 × 50,263.20
  4. Step 4: Simplify right side
    109,312.20x = 8,241,571,456.56
  5. Step 5: Solve for x
    x = 8,241,571,456.56/109,312.20
  6. Step 6: Final answer
    x = 75,394.80

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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.