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Finding the Fourth Proportional to 354,847.80, 532,790.10 and 144,895.80

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Solution

The fourth proportional to 354,847.80, 532,790.10 and 144,895.80 is: 217,555.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,847.80 : 532,790.10 = 144,895.80 : x
  2. Step 2: Convert to fraction form
    354,847.80/532,790.10 = 144,895.80/x
  3. Step 3: Cross multiply
    354,847.80x = 532,790.10 × 144,895.80
  4. Step 4: Simplify right side
    354,847.80x = 77,199,047,771.58
  5. Step 5: Solve for x
    x = 77,199,047,771.58/354,847.80
  6. Step 6: Final answer
    x = 217,555.38

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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.