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Finding the Fourth Proportional to 272,225.80, 407,852.70 and 131,674.60

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Solution

The fourth proportional to 272,225.80, 407,852.70 and 131,674.60 is: 197,276.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,225.80 : 407,852.70 = 131,674.60 : x
  2. Step 2: Convert to fraction form
    272,225.80/407,852.70 = 131,674.60/x
  3. Step 3: Cross multiply
    272,225.80x = 407,852.70 × 131,674.60
  4. Step 4: Simplify right side
    272,225.80x = 53,703,841,131.42
  5. Step 5: Solve for x
    x = 53,703,841,131.42/272,225.80
  6. Step 6: Final answer
    x = 197,276.82

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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.