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Finding the Fourth Proportional to 108,770.93, 163,160.79 and 51,815.54

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Solution

The fourth proportional to 108,770.93, 163,160.79 and 51,815.54 is: 77,725.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,770.93 : 163,160.79 = 51,815.54 : x
  2. Step 2: Convert to fraction form
    108,770.93/163,160.79 = 51,815.54/x
  3. Step 3: Cross multiply
    108,770.93x = 163,160.79 × 51,815.54
  4. Step 4: Simplify right side
    108,770.93x = 8,454,263,871.37
  5. Step 5: Solve for x
    x = 8,454,263,871.37/108,770.93
  6. Step 6: Final answer
    x = 77,725.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.