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Finding the Fourth Proportional to 181,534.80, 272,302.20 and 146,542.80

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Solution

The fourth proportional to 181,534.80, 272,302.20 and 146,542.80 is: 219,814.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,534.80 : 272,302.20 = 146,542.80 : x
  2. Step 2: Convert to fraction form
    181,534.80/272,302.20 = 146,542.80/x
  3. Step 3: Cross multiply
    181,534.80x = 272,302.20 × 146,542.80
  4. Step 4: Simplify right side
    181,534.80x = 39,903,926,834.16
  5. Step 5: Solve for x
    x = 39,903,926,834.16/181,534.80
  6. Step 6: Final answer
    x = 219,814.20

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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.