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Finding the Fourth Proportional to 447,403.38, 671,210.18 and 147,883.98

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Solution

The fourth proportional to 447,403.38, 671,210.18 and 147,883.98 is: 221,860.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,403.38 : 671,210.18 = 147,883.98 : x
  2. Step 2: Convert to fraction form
    447,403.38/671,210.18 = 147,883.98/x
  3. Step 3: Cross multiply
    447,403.38x = 671,210.18 × 147,883.98
  4. Step 4: Simplify right side
    447,403.38x = 99,261,232,834.92
  5. Step 5: Solve for x
    x = 99,261,232,834.92/447,403.38
  6. Step 6: Final answer
    x = 221,860.71

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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.