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Finding the Fourth Proportional to 447,771.92, 671,746.51 and 127,926.51

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Solution

The fourth proportional to 447,771.92, 671,746.51 and 127,926.51 is: 191,915.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,771.92 : 671,746.51 = 127,926.51 : x
  2. Step 2: Convert to fraction form
    447,771.92/671,746.51 = 127,926.51/x
  3. Step 3: Cross multiply
    447,771.92x = 671,746.51 × 127,926.51
  4. Step 4: Simplify right side
    447,771.92x = 85,934,184,269.84
  5. Step 5: Solve for x
    x = 85,934,184,269.84/447,771.92
  6. Step 6: Final answer
    x = 191,915.08

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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.