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Finding the Fourth Proportional to 152,043.80, 228,065.70 and 144,786.20

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Solution

The fourth proportional to 152,043.80, 228,065.70 and 144,786.20 is: 217,179.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,043.80 : 228,065.70 = 144,786.20 : x
  2. Step 2: Convert to fraction form
    152,043.80/228,065.70 = 144,786.20/x
  3. Step 3: Cross multiply
    152,043.80x = 228,065.70 × 144,786.20
  4. Step 4: Simplify right side
    152,043.80x = 33,020,766,053.34
  5. Step 5: Solve for x
    x = 33,020,766,053.34/152,043.80
  6. Step 6: Final answer
    x = 217,179.30

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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.