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Finding the Fourth Proportional to 179,699.80, 269,549.70 and 127,211.80

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Solution

The fourth proportional to 179,699.80, 269,549.70 and 127,211.80 is: 190,817.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,699.80 : 269,549.70 = 127,211.80 : x
  2. Step 2: Convert to fraction form
    179,699.80/269,549.70 = 127,211.80/x
  3. Step 3: Cross multiply
    179,699.80x = 269,549.70 × 127,211.80
  4. Step 4: Simplify right side
    179,699.80x = 34,289,902,526.46
  5. Step 5: Solve for x
    x = 34,289,902,526.46/179,699.80
  6. Step 6: Final answer
    x = 190,817.70

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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.