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Finding the Fourth Proportional to 456,807.30, 685,254.15 and 124,383.30

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Solution

The fourth proportional to 456,807.30, 685,254.15 and 124,383.30 is: 186,586.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,807.30 : 685,254.15 = 124,383.30 : x
  2. Step 2: Convert to fraction form
    456,807.30/685,254.15 = 124,383.30/x
  3. Step 3: Cross multiply
    456,807.30x = 685,254.15 × 124,383.30
  4. Step 4: Simplify right side
    456,807.30x = 85,234,172,515.70
  5. Step 5: Solve for x
    x = 85,234,172,515.70/456,807.30
  6. Step 6: Final answer
    x = 186,586.71

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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.