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Finding the Fourth Proportional to 318,189.74, 439,103.49 and 174,959.01

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Solution

The fourth proportional to 318,189.74, 439,103.49 and 174,959.01 is: 241,444.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,189.74 : 439,103.49 = 174,959.01 : x
  2. Step 2: Convert to fraction form
    318,189.74/439,103.49 = 174,959.01/x
  3. Step 3: Cross multiply
    318,189.74x = 439,103.49 × 174,959.01
  4. Step 4: Simplify right side
    318,189.74x = 76,825,111,897.94
  5. Step 5: Solve for x
    x = 76,825,111,897.94/318,189.74
  6. Step 6: Final answer
    x = 241,444.34

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1.5x scale

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.