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Finding the Fourth Proportional to 181,713.80, 272,862.30 and 122,810.60

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Solution

The fourth proportional to 181,713.80, 272,862.30 and 122,810.60 is: 184,412.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,713.80 : 272,862.30 = 122,810.60 : x
  2. Step 2: Convert to fraction form
    181,713.80/272,862.30 = 122,810.60/x
  3. Step 3: Cross multiply
    181,713.80x = 272,862.30 × 122,810.60
  4. Step 4: Simplify right side
    181,713.80x = 33,510,382,780.38
  5. Step 5: Solve for x
    x = 33,510,382,780.38/181,713.80
  6. Step 6: Final answer
    x = 184,412.98

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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.