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Finding the Fourth Proportional to 118,836.96, 163,959.84 and 67,848

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Solution

The fourth proportional to 118,836.96, 163,959.84 and 67,848 is: 93,610.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,836.96 : 163,959.84 = 67,848 : x
  2. Step 2: Convert to fraction form
    118,836.96/163,959.84 = 67,848/x
  3. Step 3: Cross multiply
    118,836.96x = 163,959.84 × 67,848
  4. Step 4: Simplify right side
    118,836.96x = 11,124,347,224.32
  5. Step 5: Solve for x
    x = 11,124,347,224.32/118,836.96
  6. Step 6: Final answer
    x = 93,610.16

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1.5x scale

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.