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Finding the Fourth Proportional to 141,449.91, 212,169.42 and 47,955.66

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Solution

The fourth proportional to 141,449.91, 212,169.42 and 47,955.66 is: 71,931.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,449.91 : 212,169.42 = 47,955.66 : x
  2. Step 2: Convert to fraction form
    141,449.91/212,169.42 = 47,955.66/x
  3. Step 3: Cross multiply
    141,449.91x = 212,169.42 × 47,955.66
  4. Step 4: Simplify right side
    141,449.91x = 10,174,724,567.92
  5. Step 5: Solve for x
    x = 10,174,724,567.92/141,449.91
  6. Step 6: Final answer
    x = 71,931.64

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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.