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Finding the Fourth Proportional to 118,674.12, 163,770.53 and 64,962.57

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Solution

The fourth proportional to 118,674.12, 163,770.53 and 64,962.57 is: 89,648.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,674.12 : 163,770.53 = 64,962.57 : x
  2. Step 2: Convert to fraction form
    118,674.12/163,770.53 = 64,962.57/x
  3. Step 3: Cross multiply
    118,674.12x = 163,770.53 × 64,962.57
  4. Step 4: Simplify right side
    118,674.12x = 10,638,953,375.40
  5. Step 5: Solve for x
    x = 10,638,953,375.40/118,674.12
  6. Step 6: Final answer
    x = 89,648.47

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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.