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Finding the Fourth Proportional to 98,795.40, 148,193.10 and 82,392.90

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Solution

The fourth proportional to 98,795.40, 148,193.10 and 82,392.90 is: 123,589.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,795.40 : 148,193.10 = 82,392.90 : x
  2. Step 2: Convert to fraction form
    98,795.40/148,193.10 = 82,392.90/x
  3. Step 3: Cross multiply
    98,795.40x = 148,193.10 × 82,392.90
  4. Step 4: Simplify right side
    98,795.40x = 12,210,059,268.99
  5. Step 5: Solve for x
    x = 12,210,059,268.99/98,795.40
  6. Step 6: Final answer
    x = 123,589.35

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Similar ratio
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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.