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Finding the Fourth Proportional to 185,841.51, 277,911.09 and 138,489.54

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Solution

The fourth proportional to 185,841.51, 277,911.09 and 138,489.54 is: 207,100.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,841.51 : 277,911.09 = 138,489.54 : x
  2. Step 2: Convert to fraction form
    185,841.51/277,911.09 = 138,489.54/x
  3. Step 3: Cross multiply
    185,841.51x = 277,911.09 × 138,489.54
  4. Step 4: Simplify right side
    185,841.51x = 38,487,779,015.00
  5. Step 5: Solve for x
    x = 38,487,779,015.00/185,841.51
  6. Step 6: Final answer
    x = 207,100.01

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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.