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Finding the Fourth Proportional to 160,662.12, 221,713.74 and 89,046.77

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Solution

The fourth proportional to 160,662.12, 221,713.74 and 89,046.77 is: 122,884.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,662.12 : 221,713.74 = 89,046.77 : x
  2. Step 2: Convert to fraction form
    160,662.12/221,713.74 = 89,046.77/x
  3. Step 3: Cross multiply
    160,662.12x = 221,713.74 × 89,046.77
  4. Step 4: Simplify right side
    160,662.12x = 19,742,891,303.05
  5. Step 5: Solve for x
    x = 19,742,891,303.05/160,662.12
  6. Step 6: Final answer
    x = 122,884.54

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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.