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Finding the Fourth Proportional to 194,025.80, 291,370.80 and 105,452.30

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Solution

The fourth proportional to 194,025.80, 291,370.80 and 105,452.30 is: 158,358.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,025.80 : 291,370.80 = 105,452.30 : x
  2. Step 2: Convert to fraction form
    194,025.80/291,370.80 = 105,452.30/x
  3. Step 3: Cross multiply
    194,025.80x = 291,370.80 × 105,452.30
  4. Step 4: Simplify right side
    194,025.80x = 30,725,721,012.84
  5. Step 5: Solve for x
    x = 30,725,721,012.84/194,025.80
  6. Step 6: Final answer
    x = 158,358.95

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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.