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Finding the Fourth Proportional to 161,960.83, 223,505.82 and 90,340.83

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Solution

The fourth proportional to 161,960.83, 223,505.82 and 90,340.83 is: 124,670.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,960.83 : 223,505.82 = 90,340.83 : x
  2. Step 2: Convert to fraction form
    161,960.83/223,505.82 = 90,340.83/x
  3. Step 3: Cross multiply
    161,960.83x = 223,505.82 × 90,340.83
  4. Step 4: Simplify right side
    161,960.83x = 20,191,701,288.63
  5. Step 5: Solve for x
    x = 20,191,701,288.63/161,960.83
  6. Step 6: Final answer
    x = 124,670.28

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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.