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Finding the Fourth Proportional to 118,670.46, 163,765.48 and 64,958.91

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Solution

The fourth proportional to 118,670.46, 163,765.48 and 64,958.91 is: 89,643.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,670.46 : 163,765.48 = 64,958.91 : x
  2. Step 2: Convert to fraction form
    118,670.46/163,765.48 = 64,958.91/x
  3. Step 3: Cross multiply
    118,670.46x = 163,765.48 × 64,958.91
  4. Step 4: Simplify right side
    118,670.46x = 10,638,026,257.60
  5. Step 5: Solve for x
    x = 10,638,026,257.60/118,670.46
  6. Step 6: Final answer
    x = 89,643.42

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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.