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Finding the Fourth Proportional to 357,331.49, 535,883.42 and 117,389.69

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Solution

The fourth proportional to 357,331.49, 535,883.42 and 117,389.69 is: 176,047.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,331.49 : 535,883.42 = 117,389.69 : x
  2. Step 2: Convert to fraction form
    357,331.49/535,883.42 = 117,389.69/x
  3. Step 3: Cross multiply
    357,331.49x = 535,883.42 × 117,389.69
  4. Step 4: Simplify right side
    357,331.49x = 62,907,190,183.12
  5. Step 5: Solve for x
    x = 62,907,190,183.12/357,331.49
  6. Step 6: Final answer
    x = 176,047.15

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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.