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Finding the Fourth Proportional to 439,513.80, 659,232.30 and 144,025.80

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Solution

The fourth proportional to 439,513.80, 659,232.30 and 144,025.80 is: 216,026.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,513.80 : 659,232.30 = 144,025.80 : x
  2. Step 2: Convert to fraction form
    439,513.80/659,232.30 = 144,025.80/x
  3. Step 3: Cross multiply
    439,513.80x = 659,232.30 × 144,025.80
  4. Step 4: Simplify right side
    439,513.80x = 94,946,459,393.34
  5. Step 5: Solve for x
    x = 94,946,459,393.34/439,513.80
  6. Step 6: Final answer
    x = 216,026.12

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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.