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Finding the Fourth Proportional to 132,775.70, 183,228.16 and 72,346.84

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Solution

The fourth proportional to 132,775.70, 183,228.16 and 72,346.84 is: 99,837.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,775.70 : 183,228.16 = 72,346.84 : x
  2. Step 2: Convert to fraction form
    132,775.70/183,228.16 = 72,346.84/x
  3. Step 3: Cross multiply
    132,775.70x = 183,228.16 × 72,346.84
  4. Step 4: Simplify right side
    132,775.70x = 13,255,978,375.01
  5. Step 5: Solve for x
    x = 13,255,978,375.01/132,775.70
  6. Step 6: Final answer
    x = 99,837.38

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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.