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Finding the Fourth Proportional to 193,246.80, 289,870.20 and 98,768.40

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Solution

The fourth proportional to 193,246.80, 289,870.20 and 98,768.40 is: 148,152.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,246.80 : 289,870.20 = 98,768.40 : x
  2. Step 2: Convert to fraction form
    193,246.80/289,870.20 = 98,768.40/x
  3. Step 3: Cross multiply
    193,246.80x = 289,870.20 × 98,768.40
  4. Step 4: Simplify right side
    193,246.80x = 28,630,015,861.68
  5. Step 5: Solve for x
    x = 28,630,015,861.68/193,246.80
  6. Step 6: Final answer
    x = 148,152.60

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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.