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Finding the Fourth Proportional to 174,955.40, 262,253.90 and 86,072.20

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Solution

The fourth proportional to 174,955.40, 262,253.90 and 86,072.20 is: 129,020.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,955.40 : 262,253.90 = 86,072.20 : x
  2. Step 2: Convert to fraction form
    174,955.40/262,253.90 = 86,072.20/x
  3. Step 3: Cross multiply
    174,955.40x = 262,253.90 × 86,072.20
  4. Step 4: Simplify right side
    174,955.40x = 22,572,770,131.58
  5. Step 5: Solve for x
    x = 22,572,770,131.58/174,955.40
  6. Step 6: Final answer
    x = 129,020.14

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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.