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Finding the Fourth Proportional to 447,802.93, 671,792.98 and 127,957.69

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Solution

The fourth proportional to 447,802.93, 671,792.98 and 127,957.69 is: 191,961.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,802.93 : 671,792.98 = 127,957.69 : x
  2. Step 2: Convert to fraction form
    447,802.93/671,792.98 = 127,957.69/x
  3. Step 3: Cross multiply
    447,802.93x = 671,792.98 × 127,957.69
  4. Step 4: Simplify right side
    447,802.93x = 85,961,074,520.05
  5. Step 5: Solve for x
    x = 85,961,074,520.05/447,802.93
  6. Step 6: Final answer
    x = 191,961.84

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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.