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Finding the Fourth Proportional to 152,836.80, 229,060.80 and 73,780.80

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Solution

The fourth proportional to 152,836.80, 229,060.80 and 73,780.80 is: 110,577.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,836.80 : 229,060.80 = 73,780.80 : x
  2. Step 2: Convert to fraction form
    152,836.80/229,060.80 = 73,780.80/x
  3. Step 3: Cross multiply
    152,836.80x = 229,060.80 × 73,780.80
  4. Step 4: Simplify right side
    152,836.80x = 16,900,289,072.64
  5. Step 5: Solve for x
    x = 16,900,289,072.64/152,836.80
  6. Step 6: Final answer
    x = 110,577.35

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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.