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Finding the Fourth Proportional to 86,055.88, 118,768.24 and 48,330.12

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Solution

The fourth proportional to 86,055.88, 118,768.24 and 48,330.12 is: 66,701.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,055.88 : 118,768.24 = 48,330.12 : x
  2. Step 2: Convert to fraction form
    86,055.88/118,768.24 = 48,330.12/x
  3. Step 3: Cross multiply
    86,055.88x = 118,768.24 × 48,330.12
  4. Step 4: Simplify right side
    86,055.88x = 5,740,083,291.39
  5. Step 5: Solve for x
    x = 5,740,083,291.39/86,055.88
  6. Step 6: Final answer
    x = 66,701.81

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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.