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Finding the Fourth Proportional to 148,886.96, 205,476.60 and 81,832.88

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Solution

The fourth proportional to 148,886.96, 205,476.60 and 81,832.88 is: 112,936.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,886.96 : 205,476.60 = 81,832.88 : x
  2. Step 2: Convert to fraction form
    148,886.96/205,476.60 = 81,832.88/x
  3. Step 3: Cross multiply
    148,886.96x = 205,476.60 × 81,832.88
  4. Step 4: Simplify right side
    148,886.96x = 16,814,741,950.61
  5. Step 5: Solve for x
    x = 16,814,741,950.61/148,886.96
  6. Step 6: Final answer
    x = 112,936.30

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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.