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Finding the Fourth Proportional to 456,740.55, 685,061.55 and 119,814.96

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Solution

The fourth proportional to 456,740.55, 685,061.55 and 119,814.96 is: 179,709.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,740.55 : 685,061.55 = 119,814.96 : x
  2. Step 2: Convert to fraction form
    456,740.55/685,061.55 = 119,814.96/x
  3. Step 3: Cross multiply
    456,740.55x = 685,061.55 × 119,814.96
  4. Step 4: Simplify right side
    456,740.55x = 82,080,622,210.79
  5. Step 5: Solve for x
    x = 82,080,622,210.79/456,740.55
  6. Step 6: Final answer
    x = 179,709.51

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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.