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Finding the Fourth Proportional to 248,482.98, 372,784.05 and 80,019.18

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Solution

The fourth proportional to 248,482.98, 372,784.05 and 80,019.18 is: 120,047.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,482.98 : 372,784.05 = 80,019.18 : x
  2. Step 2: Convert to fraction form
    248,482.98/372,784.05 = 80,019.18/x
  3. Step 3: Cross multiply
    248,482.98x = 372,784.05 × 80,019.18
  4. Step 4: Simplify right side
    248,482.98x = 29,829,873,998.08
  5. Step 5: Solve for x
    x = 29,829,873,998.08/248,482.98
  6. Step 6: Final answer
    x = 120,047.96

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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.