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Finding the Fourth Proportional to 118,673.87, 163,770.18 and 64,962.32

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Solution

The fourth proportional to 118,673.87, 163,770.18 and 64,962.32 is: 89,648.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,673.87 : 163,770.18 = 64,962.32 : x
  2. Step 2: Convert to fraction form
    118,673.87/163,770.18 = 64,962.32/x
  3. Step 3: Cross multiply
    118,673.87x = 163,770.18 × 64,962.32
  4. Step 4: Simplify right side
    118,673.87x = 10,638,890,020.77
  5. Step 5: Solve for x
    x = 10,638,890,020.77/118,673.87
  6. Step 6: Final answer
    x = 89,648.13

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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.