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Finding the Fourth Proportional to 185,124.38, 277,629.08 and 66,780.32

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Solution

The fourth proportional to 185,124.38, 277,629.08 and 66,780.32 is: 100,149.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,124.38 : 277,629.08 = 66,780.32 : x
  2. Step 2: Convert to fraction form
    185,124.38/277,629.08 = 66,780.32/x
  3. Step 3: Cross multiply
    185,124.38x = 277,629.08 × 66,780.32
  4. Step 4: Simplify right side
    185,124.38x = 18,540,158,803.71
  5. Step 5: Solve for x
    x = 18,540,158,803.71/185,124.38
  6. Step 6: Final answer
    x = 100,149.74

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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.