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Finding the Fourth Proportional to 450,358.86, 675,488.07 and 113,399.40

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Solution

The fourth proportional to 450,358.86, 675,488.07 and 113,399.40 is: 170,086.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,358.86 : 675,488.07 = 113,399.40 : x
  2. Step 2: Convert to fraction form
    450,358.86/675,488.07 = 113,399.40/x
  3. Step 3: Cross multiply
    450,358.86x = 675,488.07 × 113,399.40
  4. Step 4: Simplify right side
    450,358.86x = 76,599,941,845.16
  5. Step 5: Solve for x
    x = 76,599,941,845.16/450,358.86
  6. Step 6: Final answer
    x = 170,086.45

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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.