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Finding the Fourth Proportional to 86,054.63, 118,766.52 and 48,328.88

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Solution

The fourth proportional to 86,054.63, 118,766.52 and 48,328.88 is: 66,700.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,054.63 : 118,766.52 = 48,328.88 : x
  2. Step 2: Convert to fraction form
    86,054.63/118,766.52 = 48,328.88/x
  3. Step 3: Cross multiply
    86,054.63x = 118,766.52 × 48,328.88
  4. Step 4: Simplify right side
    86,054.63x = 5,739,852,299.27
  5. Step 5: Solve for x
    x = 5,739,852,299.27/86,054.63
  6. Step 6: Final answer
    x = 66,700.10

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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.