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Finding the Fourth Proportional to 114,281.79, 171,420.86 and 31,175.79

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Solution

The fourth proportional to 114,281.79, 171,420.86 and 31,175.79 is: 46,763.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,281.79 : 171,420.86 = 31,175.79 : x
  2. Step 2: Convert to fraction form
    114,281.79/171,420.86 = 31,175.79/x
  3. Step 3: Cross multiply
    114,281.79x = 171,420.86 × 31,175.79
  4. Step 4: Simplify right side
    114,281.79x = 5,344,179,992.73
  5. Step 5: Solve for x
    x = 5,344,179,992.73/114,281.79
  6. Step 6: Final answer
    x = 46,763.18

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1.5x scale

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.