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Finding the Fourth Proportional to 114,412.60, 171,230.10 and 100,415.80

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Solution

The fourth proportional to 114,412.60, 171,230.10 and 100,415.80 is: 150,282.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,412.60 : 171,230.10 = 100,415.80 : x
  2. Step 2: Convert to fraction form
    114,412.60/171,230.10 = 100,415.80/x
  3. Step 3: Cross multiply
    114,412.60x = 171,230.10 × 100,415.80
  4. Step 4: Simplify right side
    114,412.60x = 17,194,207,475.58
  5. Step 5: Solve for x
    x = 17,194,207,475.58/114,412.60
  6. Step 6: Final answer
    x = 150,282.46

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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.