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Finding the Fourth Proportional to 86,046.58, 118,731.45 and 48,313.54

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Solution

The fourth proportional to 86,046.58, 118,731.45 and 48,313.54 is: 66,665.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,046.58 : 118,731.45 = 48,313.54 : x
  2. Step 2: Convert to fraction form
    86,046.58/118,731.45 = 48,313.54/x
  3. Step 3: Cross multiply
    86,046.58x = 118,731.45 × 48,313.54
  4. Step 4: Simplify right side
    86,046.58x = 5,736,336,658.83
  5. Step 5: Solve for x
    x = 5,736,336,658.83/86,046.58
  6. Step 6: Final answer
    x = 66,665.48

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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.