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Finding the Fourth Proportional to 161,698.80, 242,560.80 and 43,368.96

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Solution

The fourth proportional to 161,698.80, 242,560.80 and 43,368.96 is: 65,056.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,698.80 : 242,560.80 = 43,368.96 : x
  2. Step 2: Convert to fraction form
    161,698.80/242,560.80 = 43,368.96/x
  3. Step 3: Cross multiply
    161,698.80x = 242,560.80 × 43,368.96
  4. Step 4: Simplify right side
    161,698.80x = 10,519,609,632.77
  5. Step 5: Solve for x
    x = 10,519,609,632.77/161,698.80
  6. Step 6: Final answer
    x = 65,056.82

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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.