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Finding the Fourth Proportional to 443,599.80, 665,496.90 and 144,029.40

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Solution

The fourth proportional to 443,599.80, 665,496.90 and 144,029.40 is: 216,075.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,599.80 : 665,496.90 = 144,029.40 : x
  2. Step 2: Convert to fraction form
    443,599.80/665,496.90 = 144,029.40/x
  3. Step 3: Cross multiply
    443,599.80x = 665,496.90 × 144,029.40
  4. Step 4: Simplify right side
    443,599.80x = 95,851,119,208.86
  5. Step 5: Solve for x
    x = 95,851,119,208.86/443,599.80
  6. Step 6: Final answer
    x = 216,075.66

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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.