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Finding the Fourth Proportional to 161,209.65, 222,451.61 and 93,216.32

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Solution

The fourth proportional to 161,209.65, 222,451.61 and 93,216.32 is: 128,628.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,209.65 : 222,451.61 = 93,216.32 : x
  2. Step 2: Convert to fraction form
    161,209.65/222,451.61 = 93,216.32/x
  3. Step 3: Cross multiply
    161,209.65x = 222,451.61 × 93,216.32
  4. Step 4: Simplify right side
    161,209.65x = 20,736,120,462.28
  5. Step 5: Solve for x
    x = 20,736,120,462.28/161,209.65
  6. Step 6: Final answer
    x = 128,628.28

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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.