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Finding the Fourth Proportional to 482,181, 723,320.08 and 127,219.56

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Solution

The fourth proportional to 482,181, 723,320.08 and 127,219.56 is: 190,842.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,181 : 723,320.08 = 127,219.56 : x
  2. Step 2: Convert to fraction form
    482,181/723,320.08 = 127,219.56/x
  3. Step 3: Cross multiply
    482,181x = 723,320.08 × 127,219.56
  4. Step 4: Simplify right side
    482,181x = 92,020,462,316.76
  5. Step 5: Solve for x
    x = 92,020,462,316.76/482,181
  6. Step 6: Final answer
    x = 190,842.16

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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.