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Finding the Fourth Proportional to 272,605.60, 376,195.76 and 151,744.32

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Solution

The fourth proportional to 272,605.60, 376,195.76 and 151,744.32 is: 209,407.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,605.60 : 376,195.76 = 151,744.32 : x
  2. Step 2: Convert to fraction form
    272,605.60/376,195.76 = 151,744.32/x
  3. Step 3: Cross multiply
    272,605.60x = 376,195.76 × 151,744.32
  4. Step 4: Simplify right side
    272,605.60x = 57,085,569,788.08
  5. Step 5: Solve for x
    x = 57,085,569,788.08/272,605.60
  6. Step 6: Final answer
    x = 209,407.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.