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Finding the Fourth Proportional to 66,373.02, 91,594.90 and 36,158.70

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Solution

The fourth proportional to 66,373.02, 91,594.90 and 36,158.70 is: 49,899.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,373.02 : 91,594.90 = 36,158.70 : x
  2. Step 2: Convert to fraction form
    66,373.02/91,594.90 = 36,158.70/x
  3. Step 3: Cross multiply
    66,373.02x = 91,594.90 × 36,158.70
  4. Step 4: Simplify right side
    66,373.02x = 3,311,952,899.31
  5. Step 5: Solve for x
    x = 3,311,952,899.31/66,373.02
  6. Step 6: Final answer
    x = 49,899.08

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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.