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Finding the Fourth Proportional to 447,507.19, 671,158.25 and 127,652.99

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Solution

The fourth proportional to 447,507.19, 671,158.25 and 127,652.99 is: 191,450.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,507.19 : 671,158.25 = 127,652.99 : x
  2. Step 2: Convert to fraction form
    447,507.19/671,158.25 = 127,652.99/x
  3. Step 3: Cross multiply
    447,507.19x = 671,158.25 × 127,652.99
  4. Step 4: Simplify right side
    447,507.19x = 85,675,356,737.40
  5. Step 5: Solve for x
    x = 85,675,356,737.40/447,507.19
  6. Step 6: Final answer
    x = 191,450.24

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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.