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Finding the Fourth Proportional to 79,741.64, 119,380.76 and 46,359.92

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Solution

The fourth proportional to 79,741.64, 119,380.76 and 46,359.92 is: 69,405.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,741.64 : 119,380.76 = 46,359.92 : x
  2. Step 2: Convert to fraction form
    79,741.64/119,380.76 = 46,359.92/x
  3. Step 3: Cross multiply
    79,741.64x = 119,380.76 × 46,359.92
  4. Step 4: Simplify right side
    79,741.64x = 5,534,482,483.14
  5. Step 5: Solve for x
    x = 5,534,482,483.14/79,741.64
  6. Step 6: Final answer
    x = 69,405.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.