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Finding the Fourth Proportional to 132,753.84, 183,059.64 and 85,009.20

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Solution

The fourth proportional to 132,753.84, 183,059.64 and 85,009.20 is: 117,222.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,753.84 : 183,059.64 = 85,009.20 : x
  2. Step 2: Convert to fraction form
    132,753.84/183,059.64 = 85,009.20/x
  3. Step 3: Cross multiply
    132,753.84x = 183,059.64 × 85,009.20
  4. Step 4: Simplify right side
    132,753.84x = 15,561,753,548.69
  5. Step 5: Solve for x
    x = 15,561,753,548.69/132,753.84
  6. Step 6: Final answer
    x = 117,222.62

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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.