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Finding the Fourth Proportional to 185,055.80, 277,583.70 and 66,739.10

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Solution

The fourth proportional to 185,055.80, 277,583.70 and 66,739.10 is: 100,108.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,055.80 : 277,583.70 = 66,739.10 : x
  2. Step 2: Convert to fraction form
    185,055.80/277,583.70 = 66,739.10/x
  3. Step 3: Cross multiply
    185,055.80x = 277,583.70 × 66,739.10
  4. Step 4: Simplify right side
    185,055.80x = 18,525,686,312.67
  5. Step 5: Solve for x
    x = 18,525,686,312.67/185,055.80
  6. Step 6: Final answer
    x = 100,108.65

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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.