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Finding the Fourth Proportional to 118,364.52, 163,346.60 and 64,652.42

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Solution

The fourth proportional to 118,364.52, 163,346.60 and 64,652.42 is: 89,222.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,364.52 : 163,346.60 = 64,652.42 : x
  2. Step 2: Convert to fraction form
    118,364.52/163,346.60 = 64,652.42/x
  3. Step 3: Cross multiply
    118,364.52x = 163,346.60 × 64,652.42
  4. Step 4: Simplify right side
    118,364.52x = 10,560,752,988.77
  5. Step 5: Solve for x
    x = 10,560,752,988.77/118,364.52
  6. Step 6: Final answer
    x = 89,222.29

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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.