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Finding the Fourth Proportional to 86,058.64, 118,748.04 and 48,325.60

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Solution

The fourth proportional to 86,058.64, 118,748.04 and 48,325.60 is: 66,682.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,058.64 : 118,748.04 = 48,325.60 : x
  2. Step 2: Convert to fraction form
    86,058.64/118,748.04 = 48,325.60/x
  3. Step 3: Cross multiply
    86,058.64x = 118,748.04 × 48,325.60
  4. Step 4: Simplify right side
    86,058.64x = 5,738,570,281.82
  5. Step 5: Solve for x
    x = 5,738,570,281.82/86,058.64
  6. Step 6: Final answer
    x = 66,682.09

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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.