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Finding the Fourth Proportional to 174,965.80, 262,448.70 and 86,392.30

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Solution

The fourth proportional to 174,965.80, 262,448.70 and 86,392.30 is: 129,588.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,965.80 : 262,448.70 = 86,392.30 : x
  2. Step 2: Convert to fraction form
    174,965.80/262,448.70 = 86,392.30/x
  3. Step 3: Cross multiply
    174,965.80x = 262,448.70 × 86,392.30
  4. Step 4: Simplify right side
    174,965.80x = 22,673,546,825.01
  5. Step 5: Solve for x
    x = 22,673,546,825.01/174,965.80
  6. Step 6: Final answer
    x = 129,588.45

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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.