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Finding the Fourth Proportional to 446,803.80, 670,302.90 and 147,233.40

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Solution

The fourth proportional to 446,803.80, 670,302.90 and 147,233.40 is: 220,882.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,803.80 : 670,302.90 = 147,233.40 : x
  2. Step 2: Convert to fraction form
    446,803.80/670,302.90 = 147,233.40/x
  3. Step 3: Cross multiply
    446,803.80x = 670,302.90 × 147,233.40
  4. Step 4: Simplify right side
    446,803.80x = 98,690,974,996.86
  5. Step 5: Solve for x
    x = 98,690,974,996.86/446,803.80
  6. Step 6: Final answer
    x = 220,882.13

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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.