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Finding the Fourth Proportional to 505,510.56, 758,011.86 and 168,433.11

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Solution

The fourth proportional to 505,510.56, 758,011.86 and 168,433.11 is: 252,565.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,510.56 : 758,011.86 = 168,433.11 : x
  2. Step 2: Convert to fraction form
    505,510.56/758,011.86 = 168,433.11/x
  3. Step 3: Cross multiply
    505,510.56x = 758,011.86 × 168,433.11
  4. Step 4: Simplify right side
    505,510.56x = 127,674,294,996.69
  5. Step 5: Solve for x
    x = 127,674,294,996.69/505,510.56
  6. Step 6: Final answer
    x = 252,565.04

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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.