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Finding the Fourth Proportional to 118,228.65, 177,243.12 and 55,016.16

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Solution

The fourth proportional to 118,228.65, 177,243.12 and 55,016.16 is: 82,477.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,228.65 : 177,243.12 = 55,016.16 : x
  2. Step 2: Convert to fraction form
    118,228.65/177,243.12 = 55,016.16/x
  3. Step 3: Cross multiply
    118,228.65x = 177,243.12 × 55,016.16
  4. Step 4: Simplify right side
    118,228.65x = 9,751,235,848.82
  5. Step 5: Solve for x
    x = 9,751,235,848.82/118,228.65
  6. Step 6: Final answer
    x = 82,477.77

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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.