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Finding the Fourth Proportional to 132,551.70, 182,921.25 and 72,122.28

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Solution

The fourth proportional to 132,551.70, 182,921.25 and 72,122.28 is: 99,528.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,551.70 : 182,921.25 = 72,122.28 : x
  2. Step 2: Convert to fraction form
    132,551.70/182,921.25 = 72,122.28/x
  3. Step 3: Cross multiply
    132,551.70x = 182,921.25 × 72,122.28
  4. Step 4: Simplify right side
    132,551.70x = 13,192,697,610.45
  5. Step 5: Solve for x
    x = 13,192,697,610.45/132,551.70
  6. Step 6: Final answer
    x = 99,528.69

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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.