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Finding the Fourth Proportional to 185,117.80, 277,676.70 and 66,807.40

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Solution

The fourth proportional to 185,117.80, 277,676.70 and 66,807.40 is: 100,211.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,117.80 : 277,676.70 = 66,807.40 : x
  2. Step 2: Convert to fraction form
    185,117.80/277,676.70 = 66,807.40/x
  3. Step 3: Cross multiply
    185,117.80x = 277,676.70 × 66,807.40
  4. Step 4: Simplify right side
    185,117.80x = 18,550,858,367.58
  5. Step 5: Solve for x
    x = 18,550,858,367.58/185,117.80
  6. Step 6: Final answer
    x = 100,211.10

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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.