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Finding the Fourth Proportional to 170,003.40, 254,486.70 and 99,673.80

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Solution

The fourth proportional to 170,003.40, 254,486.70 and 99,673.80 is: 149,206.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,003.40 : 254,486.70 = 99,673.80 : x
  2. Step 2: Convert to fraction form
    170,003.40/254,486.70 = 99,673.80/x
  3. Step 3: Cross multiply
    170,003.40x = 254,486.70 × 99,673.80
  4. Step 4: Simplify right side
    170,003.40x = 25,365,656,438.46
  5. Step 5: Solve for x
    x = 25,365,656,438.46/170,003.40
  6. Step 6: Final answer
    x = 149,206.76

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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.