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Finding the Fourth Proportional to 66,373.56, 91,594.26 and 36,159.48

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Solution

The fourth proportional to 66,373.56, 91,594.26 and 36,159.48 is: 49,899.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,373.56 : 91,594.26 = 36,159.48 : x
  2. Step 2: Convert to fraction form
    66,373.56/91,594.26 = 36,159.48/x
  3. Step 3: Cross multiply
    66,373.56x = 91,594.26 × 36,159.48
  4. Step 4: Simplify right side
    66,373.56x = 3,312,000,812.58
  5. Step 5: Solve for x
    x = 3,312,000,812.58/66,373.56
  6. Step 6: Final answer
    x = 49,899.40

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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.