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Finding the Fourth Proportional to 120,059.34, 165,673.53 and 66,343.38

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Solution

The fourth proportional to 120,059.34, 165,673.53 and 66,343.38 is: 91,549.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,059.34 : 165,673.53 = 66,343.38 : x
  2. Step 2: Convert to fraction form
    120,059.34/165,673.53 = 66,343.38/x
  3. Step 3: Cross multiply
    120,059.34x = 165,673.53 × 66,343.38
  4. Step 4: Simplify right side
    120,059.34x = 10,991,341,956.73
  5. Step 5: Solve for x
    x = 10,991,341,956.73/120,059.34
  6. Step 6: Final answer
    x = 91,549.25

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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.