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Finding the Fourth Proportional to 98,219.20, 147,328.80 and 24,347.20

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Solution

The fourth proportional to 98,219.20, 147,328.80 and 24,347.20 is: 36,520.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,219.20 : 147,328.80 = 24,347.20 : x
  2. Step 2: Convert to fraction form
    98,219.20/147,328.80 = 24,347.20/x
  3. Step 3: Cross multiply
    98,219.20x = 147,328.80 × 24,347.20
  4. Step 4: Simplify right side
    98,219.20x = 3,587,043,759.36
  5. Step 5: Solve for x
    x = 3,587,043,759.36/98,219.20
  6. Step 6: Final answer
    x = 36,520.80

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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.