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Finding the Fourth Proportional to 482,897.30, 724,313.55 and 127,903.70

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Solution

The fourth proportional to 482,897.30, 724,313.55 and 127,903.70 is: 191,846.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,897.30 : 724,313.55 = 127,903.70 : x
  2. Step 2: Convert to fraction form
    482,897.30/724,313.55 = 127,903.70/x
  3. Step 3: Cross multiply
    482,897.30x = 724,313.55 × 127,903.70
  4. Step 4: Simplify right side
    482,897.30x = 92,642,383,005.14
  5. Step 5: Solve for x
    x = 92,642,383,005.14/482,897.30
  6. Step 6: Final answer
    x = 191,846.97

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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.