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Finding the Fourth Proportional to 272,503.85, 411,315.48 and 272,503.85

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Solution

The fourth proportional to 272,503.85, 411,315.48 and 272,503.85 is: 411,315.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,503.85 : 411,315.48 = 272,503.85 : x
  2. Step 2: Convert to fraction form
    272,503.85/411,315.48 = 272,503.85/x
  3. Step 3: Cross multiply
    272,503.85x = 411,315.48 × 272,503.85
  4. Step 4: Simplify right side
    272,503.85x = 112,085,051,864.60
  5. Step 5: Solve for x
    x = 112,085,051,864.60/272,503.85
  6. Step 6: Final answer
    x = 411,315.48

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.