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Finding the Fourth Proportional to 91,873.02, 126,763.11 and 52,129.02

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Solution

The fourth proportional to 91,873.02, 126,763.11 and 52,129.02 is: 71,925.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,873.02 : 126,763.11 = 52,129.02 : x
  2. Step 2: Convert to fraction form
    91,873.02/126,763.11 = 52,129.02/x
  3. Step 3: Cross multiply
    91,873.02x = 126,763.11 × 52,129.02
  4. Step 4: Simplify right side
    91,873.02x = 6,608,036,696.45
  5. Step 5: Solve for x
    x = 6,608,036,696.45/91,873.02
  6. Step 6: Final answer
    x = 71,925.76

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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.