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Finding the Fourth Proportional to 160,661.49, 240,696.65 and 100,678.79

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Solution

The fourth proportional to 160,661.49, 240,696.65 and 100,678.79 is: 150,832.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,661.49 : 240,696.65 = 100,678.79 : x
  2. Step 2: Convert to fraction form
    160,661.49/240,696.65 = 100,678.79/x
  3. Step 3: Cross multiply
    160,661.49x = 240,696.65 × 100,678.79
  4. Step 4: Simplify right side
    160,661.49x = 24,233,045,772.18
  5. Step 5: Solve for x
    x = 24,233,045,772.18/160,661.49
  6. Step 6: Final answer
    x = 150,832.95

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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.