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Finding the Fourth Proportional to 576,975.76, 865,466.88 and 156,255.28

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Solution

The fourth proportional to 576,975.76, 865,466.88 and 156,255.28 is: 234,383.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,975.76 : 865,466.88 = 156,255.28 : x
  2. Step 2: Convert to fraction form
    576,975.76/865,466.88 = 156,255.28/x
  3. Step 3: Cross multiply
    576,975.76x = 865,466.88 × 156,255.28
  4. Step 4: Simplify right side
    576,975.76x = 135,233,769,665.13
  5. Step 5: Solve for x
    x = 135,233,769,665.13/576,975.76
  6. Step 6: Final answer
    x = 234,383.80

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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.