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Finding the Fourth Proportional to 86,055.76, 118,762.22 and 48,330

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Solution

The fourth proportional to 86,055.76, 118,762.22 and 48,330 is: 66,698.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,055.76 : 118,762.22 = 48,330 : x
  2. Step 2: Convert to fraction form
    86,055.76/118,762.22 = 48,330/x
  3. Step 3: Cross multiply
    86,055.76x = 118,762.22 × 48,330
  4. Step 4: Simplify right side
    86,055.76x = 5,739,778,092.60
  5. Step 5: Solve for x
    x = 5,739,778,092.60/86,055.76
  6. Step 6: Final answer
    x = 66,698.36

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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.