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Finding the Fourth Proportional to 500,661.36, 751,038.21 and 163,703.74

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Solution

The fourth proportional to 500,661.36, 751,038.21 and 163,703.74 is: 245,570.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,661.36 : 751,038.21 = 163,703.74 : x
  2. Step 2: Convert to fraction form
    500,661.36/751,038.21 = 163,703.74/x
  3. Step 3: Cross multiply
    500,661.36x = 751,038.21 × 163,703.74
  4. Step 4: Simplify right side
    500,661.36x = 122,947,763,859.91
  5. Step 5: Solve for x
    x = 122,947,763,859.91/500,661.36
  6. Step 6: Final answer
    x = 245,570.71

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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.