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Finding the Fourth Proportional to 219,877.40, 329,816.10 and 164,108.90

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Solution

The fourth proportional to 219,877.40, 329,816.10 and 164,108.90 is: 246,163.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,877.40 : 329,816.10 = 164,108.90 : x
  2. Step 2: Convert to fraction form
    219,877.40/329,816.10 = 164,108.90/x
  3. Step 3: Cross multiply
    219,877.40x = 329,816.10 × 164,108.90
  4. Step 4: Simplify right side
    219,877.40x = 54,125,757,373.29
  5. Step 5: Solve for x
    x = 54,125,757,373.29/219,877.40
  6. Step 6: Final answer
    x = 246,163.35

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1.5x scale

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.