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Finding the Fourth Proportional to 144,035.80, 215,535.30 and 97,379.80

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Solution

The fourth proportional to 144,035.80, 215,535.30 and 97,379.80 is: 145,719.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,035.80 : 215,535.30 = 97,379.80 : x
  2. Step 2: Convert to fraction form
    144,035.80/215,535.30 = 97,379.80/x
  3. Step 3: Cross multiply
    144,035.80x = 215,535.30 × 97,379.80
  4. Step 4: Simplify right side
    144,035.80x = 20,988,784,406.94
  5. Step 5: Solve for x
    x = 20,988,784,406.94/144,035.80
  6. Step 6: Final answer
    x = 145,719.22

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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.