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Finding the Fourth Proportional to 120,670.40, 181,005.60 and 41,758.40

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Solution

The fourth proportional to 120,670.40, 181,005.60 and 41,758.40 is: 62,637.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,670.40 : 181,005.60 = 41,758.40 : x
  2. Step 2: Convert to fraction form
    120,670.40/181,005.60 = 41,758.40/x
  3. Step 3: Cross multiply
    120,670.40x = 181,005.60 × 41,758.40
  4. Step 4: Simplify right side
    120,670.40x = 7,558,504,247.04
  5. Step 5: Solve for x
    x = 7,558,504,247.04/120,670.40
  6. Step 6: Final answer
    x = 62,637.60

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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.