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Finding the Fourth Proportional to 178,028.01, 266,955.89 and 65,761.09

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Solution

The fourth proportional to 178,028.01, 266,955.89 and 65,761.09 is: 98,609.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,028.01 : 266,955.89 = 65,761.09 : x
  2. Step 2: Convert to fraction form
    178,028.01/266,955.89 = 65,761.09/x
  3. Step 3: Cross multiply
    178,028.01x = 266,955.89 × 65,761.09
  4. Step 4: Simplify right side
    178,028.01x = 17,555,309,312.12
  5. Step 5: Solve for x
    x = 17,555,309,312.12/178,028.01
  6. Step 6: Final answer
    x = 98,609.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.