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Finding the Fourth Proportional to 469,993.79, 705,018.03 and 133,006.25

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Solution

The fourth proportional to 469,993.79, 705,018.03 and 133,006.25 is: 199,517.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,993.79 : 705,018.03 = 133,006.25 : x
  2. Step 2: Convert to fraction form
    469,993.79/705,018.03 = 133,006.25/x
  3. Step 3: Cross multiply
    469,993.79x = 705,018.03 × 133,006.25
  4. Step 4: Simplify right side
    469,993.79x = 93,771,805,616.46
  5. Step 5: Solve for x
    x = 93,771,805,616.46/469,993.79
  6. Step 6: Final answer
    x = 199,517.12

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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.