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Finding the Fourth Proportional to 405,098.04, 607,593.78 and 124,591.80

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Solution

The fourth proportional to 405,098.04, 607,593.78 and 124,591.80 is: 186,871.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,098.04 : 607,593.78 = 124,591.80 : x
  2. Step 2: Convert to fraction form
    405,098.04/607,593.78 = 124,591.80/x
  3. Step 3: Cross multiply
    405,098.04x = 607,593.78 × 124,591.80
  4. Step 4: Simplify right side
    405,098.04x = 75,701,202,719.00
  5. Step 5: Solve for x
    x = 75,701,202,719.00/405,098.04
  6. Step 6: Final answer
    x = 186,871.31

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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.