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Finding the Fourth Proportional to 447,803.93, 671,794.48 and 127,958.69

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Solution

The fourth proportional to 447,803.93, 671,794.48 and 127,958.69 is: 191,963.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,803.93 : 671,794.48 = 127,958.69 : x
  2. Step 2: Convert to fraction form
    447,803.93/671,794.48 = 127,958.69/x
  3. Step 3: Cross multiply
    447,803.93x = 671,794.48 × 127,958.69
  4. Step 4: Simplify right side
    447,803.93x = 85,961,937,931.16
  5. Step 5: Solve for x
    x = 85,961,937,931.16/447,803.93
  6. Step 6: Final answer
    x = 191,963.34

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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.