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Finding the Fourth Proportional to 119,471.03, 164,868.75 and 65,754.89

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Solution

The fourth proportional to 119,471.03, 164,868.75 and 65,754.89 is: 90,741.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,471.03 : 164,868.75 = 65,754.89 : x
  2. Step 2: Convert to fraction form
    119,471.03/164,868.75 = 65,754.89/x
  3. Step 3: Cross multiply
    119,471.03x = 164,868.75 × 65,754.89
  4. Step 4: Simplify right side
    119,471.03x = 10,840,925,696.34
  5. Step 5: Solve for x
    x = 10,840,925,696.34/119,471.03
  6. Step 6: Final answer
    x = 90,741.05

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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.