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Finding the Fourth Proportional to 148,062.76, 204,276.90 and 84,355.72

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Solution

The fourth proportional to 148,062.76, 204,276.90 and 84,355.72 is: 116,382.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,062.76 : 204,276.90 = 84,355.72 : x
  2. Step 2: Convert to fraction form
    148,062.76/204,276.90 = 84,355.72/x
  3. Step 3: Cross multiply
    148,062.76x = 204,276.90 × 84,355.72
  4. Step 4: Simplify right side
    148,062.76x = 17,231,924,978.87
  5. Step 5: Solve for x
    x = 17,231,924,978.87/148,062.76
  6. Step 6: Final answer
    x = 116,382.57

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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.