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Finding the Fourth Proportional to 185,434.50, 255,899.64 and 100,551.66

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Solution

The fourth proportional to 185,434.50, 255,899.64 and 100,551.66 is: 138,761.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,434.50 : 255,899.64 = 100,551.66 : x
  2. Step 2: Convert to fraction form
    185,434.50/255,899.64 = 100,551.66/x
  3. Step 3: Cross multiply
    185,434.50x = 255,899.64 × 100,551.66
  4. Step 4: Simplify right side
    185,434.50x = 25,731,133,595.40
  5. Step 5: Solve for x
    x = 25,731,133,595.40/185,434.50
  6. Step 6: Final answer
    x = 138,761.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.