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Finding the Fourth Proportional to 121,123.40, 181,685.10 and 116,004.20

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Solution

The fourth proportional to 121,123.40, 181,685.10 and 116,004.20 is: 174,006.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,123.40 : 181,685.10 = 116,004.20 : x
  2. Step 2: Convert to fraction form
    121,123.40/181,685.10 = 116,004.20/x
  3. Step 3: Cross multiply
    121,123.40x = 181,685.10 × 116,004.20
  4. Step 4: Simplify right side
    121,123.40x = 21,076,234,677.42
  5. Step 5: Solve for x
    x = 21,076,234,677.42/121,123.40
  6. Step 6: Final answer
    x = 174,006.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.