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Finding the Fourth Proportional to 167,029.20, 250,543.80 and 138,980.93

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Solution

The fourth proportional to 167,029.20, 250,543.80 and 138,980.93 is: 208,471.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,029.20 : 250,543.80 = 138,980.93 : x
  2. Step 2: Convert to fraction form
    167,029.20/250,543.80 = 138,980.93/x
  3. Step 3: Cross multiply
    167,029.20x = 250,543.80 × 138,980.93
  4. Step 4: Simplify right side
    167,029.20x = 34,820,809,077.02
  5. Step 5: Solve for x
    x = 34,820,809,077.02/167,029.20
  6. Step 6: Final answer
    x = 208,471.39

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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.