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Finding the Fourth Proportional to 180,405.48, 270,624.12 and 47,285.28

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Solution

The fourth proportional to 180,405.48, 270,624.12 and 47,285.28 is: 70,932.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,405.48 : 270,624.12 = 47,285.28 : x
  2. Step 2: Convert to fraction form
    180,405.48/270,624.12 = 47,285.28/x
  3. Step 3: Cross multiply
    180,405.48x = 270,624.12 × 47,285.28
  4. Step 4: Simplify right side
    180,405.48x = 12,796,537,288.95
  5. Step 5: Solve for x
    x = 12,796,537,288.95/180,405.48
  6. Step 6: Final answer
    x = 70,932.09

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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.