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Finding the Fourth Proportional to 120,962.52, 181,055.56 and 64,661.84

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Solution

The fourth proportional to 120,962.52, 181,055.56 and 64,661.84 is: 96,785.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,962.52 : 181,055.56 = 64,661.84 : x
  2. Step 2: Convert to fraction form
    120,962.52/181,055.56 = 64,661.84/x
  3. Step 3: Cross multiply
    120,962.52x = 181,055.56 × 64,661.84
  4. Step 4: Simplify right side
    120,962.52x = 11,707,385,651.83
  5. Step 5: Solve for x
    x = 11,707,385,651.83/120,962.52
  6. Step 6: Final answer
    x = 96,785.23

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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.