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Finding the Fourth Proportional to 180,008.40, 269,321.40 and 117,800.40

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Solution

The fourth proportional to 180,008.40, 269,321.40 and 117,800.40 is: 176,248.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,008.40 : 269,321.40 = 117,800.40 : x
  2. Step 2: Convert to fraction form
    180,008.40/269,321.40 = 117,800.40/x
  3. Step 3: Cross multiply
    180,008.40x = 269,321.40 × 117,800.40
  4. Step 4: Simplify right side
    180,008.40x = 31,726,168,648.56
  5. Step 5: Solve for x
    x = 31,726,168,648.56/180,008.40
  6. Step 6: Final answer
    x = 176,248.27

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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.