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Finding the Fourth Proportional to 464,781.48, 697,099.20 and 127,847.40

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Solution

The fourth proportional to 464,781.48, 697,099.20 and 127,847.40 is: 191,751.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,781.48 : 697,099.20 = 127,847.40 : x
  2. Step 2: Convert to fraction form
    464,781.48/697,099.20 = 127,847.40/x
  3. Step 3: Cross multiply
    464,781.48x = 697,099.20 × 127,847.40
  4. Step 4: Simplify right side
    464,781.48x = 89,122,320,262.08
  5. Step 5: Solve for x
    x = 89,122,320,262.08/464,781.48
  6. Step 6: Final answer
    x = 191,751.01

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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.