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Finding the Fourth Proportional to 356,033.48, 534,048.86 and 145,671.36

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Solution

The fourth proportional to 356,033.48, 534,048.86 and 145,671.36 is: 218,506.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,033.48 : 534,048.86 = 145,671.36 : x
  2. Step 2: Convert to fraction form
    356,033.48/534,048.86 = 145,671.36/x
  3. Step 3: Cross multiply
    356,033.48x = 534,048.86 × 145,671.36
  4. Step 4: Simplify right side
    356,033.48x = 77,795,623,742.65
  5. Step 5: Solve for x
    x = 77,795,623,742.65/356,033.48
  6. Step 6: Final answer
    x = 218,506.48

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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.