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Finding the Fourth Proportional to 185,338.34, 277,808.50 and 78,632.23

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Solution

The fourth proportional to 185,338.34, 277,808.50 and 78,632.23 is: 117,863.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,338.34 : 277,808.50 = 78,632.23 : x
  2. Step 2: Convert to fraction form
    185,338.34/277,808.50 = 78,632.23/x
  3. Step 3: Cross multiply
    185,338.34x = 277,808.50 × 78,632.23
  4. Step 4: Simplify right side
    185,338.34x = 21,844,701,867.96
  5. Step 5: Solve for x
    x = 21,844,701,867.96/185,338.34
  6. Step 6: Final answer
    x = 117,863.91

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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.