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Finding the Fourth Proportional to 185,148.76, 277,665.60 and 66,804.70

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Solution

The fourth proportional to 185,148.76, 277,665.60 and 66,804.70 is: 100,186.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,148.76 : 277,665.60 = 66,804.70 : x
  2. Step 2: Convert to fraction form
    185,148.76/277,665.60 = 66,804.70/x
  3. Step 3: Cross multiply
    185,148.76x = 277,665.60 × 66,804.70
  4. Step 4: Simplify right side
    185,148.76x = 18,549,367,108.32
  5. Step 5: Solve for x
    x = 18,549,367,108.32/185,148.76
  6. Step 6: Final answer
    x = 100,186.29

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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.