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Finding the Fourth Proportional to 119,000.46, 164,220.54 and 65,286.38

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Solution

The fourth proportional to 119,000.46, 164,220.54 and 65,286.38 is: 90,095.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,000.46 : 164,220.54 = 65,286.38 : x
  2. Step 2: Convert to fraction form
    119,000.46/164,220.54 = 65,286.38/x
  3. Step 3: Cross multiply
    119,000.46x = 164,220.54 × 65,286.38
  4. Step 4: Simplify right side
    119,000.46x = 10,721,364,578.25
  5. Step 5: Solve for x
    x = 10,721,364,578.25/119,000.46
  6. Step 6: Final answer
    x = 90,095.15

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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.