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Finding the Fourth Proportional to 181,527.20, 272,290.80 and 168,405.20

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Solution

The fourth proportional to 181,527.20, 272,290.80 and 168,405.20 is: 252,607.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,527.20 : 272,290.80 = 168,405.20 : x
  2. Step 2: Convert to fraction form
    181,527.20/272,290.80 = 168,405.20/x
  3. Step 3: Cross multiply
    181,527.20x = 272,290.80 × 168,405.20
  4. Step 4: Simplify right side
    181,527.20x = 45,855,186,632.16
  5. Step 5: Solve for x
    x = 45,855,186,632.16/181,527.20
  6. Step 6: Final answer
    x = 252,607.80

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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.