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Finding the Fourth Proportional to 519,701.40, 779,573.97 and 164,707.56

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Solution

The fourth proportional to 519,701.40, 779,573.97 and 164,707.56 is: 247,068.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,701.40 : 779,573.97 = 164,707.56 : x
  2. Step 2: Convert to fraction form
    519,701.40/779,573.97 = 164,707.56/x
  3. Step 3: Cross multiply
    519,701.40x = 779,573.97 × 164,707.56
  4. Step 4: Simplify right side
    519,701.40x = 128,401,726,438.21
  5. Step 5: Solve for x
    x = 128,401,726,438.21/519,701.40
  6. Step 6: Final answer
    x = 247,068.27

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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.