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Finding the Fourth Proportional to 193,077.80, 289,616.70 and 119,247.40

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Solution

The fourth proportional to 193,077.80, 289,616.70 and 119,247.40 is: 178,871.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,077.80 : 289,616.70 = 119,247.40 : x
  2. Step 2: Convert to fraction form
    193,077.80/289,616.70 = 119,247.40/x
  3. Step 3: Cross multiply
    193,077.80x = 289,616.70 × 119,247.40
  4. Step 4: Simplify right side
    193,077.80x = 34,536,038,471.58
  5. Step 5: Solve for x
    x = 34,536,038,471.58/193,077.80
  6. Step 6: Final answer
    x = 178,871.10

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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.