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Finding the Fourth Proportional to 113,506.97, 169,840.08 and 71,048.79

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Solution

The fourth proportional to 113,506.97, 169,840.08 and 71,048.79 is: 106,310.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,506.97 : 169,840.08 = 71,048.79 : x
  2. Step 2: Convert to fraction form
    113,506.97/169,840.08 = 71,048.79/x
  3. Step 3: Cross multiply
    113,506.97x = 169,840.08 × 71,048.79
  4. Step 4: Simplify right side
    113,506.97x = 12,066,932,177.50
  5. Step 5: Solve for x
    x = 12,066,932,177.50/113,506.97
  6. Step 6: Final answer
    x = 106,310.06

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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.