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Finding the Fourth Proportional to 129,853.80, 182,320.20 and 129,853.80

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Solution

The fourth proportional to 129,853.80, 182,320.20 and 129,853.80 is: 182,320.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,853.80 : 182,320.20 = 129,853.80 : x
  2. Step 2: Convert to fraction form
    129,853.80/182,320.20 = 129,853.80/x
  3. Step 3: Cross multiply
    129,853.80x = 182,320.20 × 129,853.80
  4. Step 4: Simplify right side
    129,853.80x = 23,674,970,786.76
  5. Step 5: Solve for x
    x = 23,674,970,786.76/129,853.80
  6. Step 6: Final answer
    x = 182,320.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.