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Finding the Fourth Proportional to 161,911.50, 223,437.90 and 94,843.50

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Solution

The fourth proportional to 161,911.50, 223,437.90 and 94,843.50 is: 130,884.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,911.50 : 223,437.90 = 94,843.50 : x
  2. Step 2: Convert to fraction form
    161,911.50/223,437.90 = 94,843.50/x
  3. Step 3: Cross multiply
    161,911.50x = 223,437.90 × 94,843.50
  4. Step 4: Simplify right side
    161,911.50x = 21,191,632,468.65
  5. Step 5: Solve for x
    x = 21,191,632,468.65/161,911.50
  6. Step 6: Final answer
    x = 130,884.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.