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Finding the Fourth Proportional to 383,313.79, 575,058.17 and 117,112.15

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Solution

The fourth proportional to 383,313.79, 575,058.17 and 117,112.15 is: 175,694.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,313.79 : 575,058.17 = 117,112.15 : x
  2. Step 2: Convert to fraction form
    383,313.79/575,058.17 = 117,112.15/x
  3. Step 3: Cross multiply
    383,313.79x = 575,058.17 × 117,112.15
  4. Step 4: Simplify right side
    383,313.79x = 67,346,298,663.77
  5. Step 5: Solve for x
    x = 67,346,298,663.77/383,313.79
  6. Step 6: Final answer
    x = 175,694.95

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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.