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Finding the Fourth Proportional to 160,620.76, 240,739.98 and 121,047.40

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Solution

The fourth proportional to 160,620.76, 240,739.98 and 121,047.40 is: 181,427.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,620.76 : 240,739.98 = 121,047.40 : x
  2. Step 2: Convert to fraction form
    160,620.76/240,739.98 = 121,047.40/x
  3. Step 3: Cross multiply
    160,620.76x = 240,739.98 × 121,047.40
  4. Step 4: Simplify right side
    160,620.76x = 29,140,948,655.05
  5. Step 5: Solve for x
    x = 29,140,948,655.05/160,620.76
  6. Step 6: Final answer
    x = 181,427.04

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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.