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Finding the Fourth Proportional to 91,482.42, 126,230.52 and 53,763.96

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Solution

The fourth proportional to 91,482.42, 126,230.52 and 53,763.96 is: 74,185.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,482.42 : 126,230.52 = 53,763.96 : x
  2. Step 2: Convert to fraction form
    91,482.42/126,230.52 = 53,763.96/x
  3. Step 3: Cross multiply
    91,482.42x = 126,230.52 × 53,763.96
  4. Step 4: Simplify right side
    91,482.42x = 6,786,652,628.06
  5. Step 5: Solve for x
    x = 6,786,652,628.06/91,482.42
  6. Step 6: Final answer
    x = 74,185.32

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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.