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Finding the Fourth Proportional to 112,958.40, 169,504.80 and 42,844.80

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Solution

The fourth proportional to 112,958.40, 169,504.80 and 42,844.80 is: 64,292.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,958.40 : 169,504.80 = 42,844.80 : x
  2. Step 2: Convert to fraction form
    112,958.40/169,504.80 = 42,844.80/x
  3. Step 3: Cross multiply
    112,958.40x = 169,504.80 × 42,844.80
  4. Step 4: Simplify right side
    112,958.40x = 7,262,399,255.04
  5. Step 5: Solve for x
    x = 7,262,399,255.04/112,958.40
  6. Step 6: Final answer
    x = 64,292.69

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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.