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Finding the Fourth Proportional to 456,766.69, 685,196.07 and 157,207.90

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Solution

The fourth proportional to 456,766.69, 685,196.07 and 157,207.90 is: 235,827.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,766.69 : 685,196.07 = 157,207.90 : x
  2. Step 2: Convert to fraction form
    456,766.69/685,196.07 = 157,207.90/x
  3. Step 3: Cross multiply
    456,766.69x = 685,196.07 × 157,207.90
  4. Step 4: Simplify right side
    456,766.69x = 107,718,235,252.95
  5. Step 5: Solve for x
    x = 107,718,235,252.95/456,766.69
  6. Step 6: Final answer
    x = 235,827.69

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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.