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Finding the Fourth Proportional to 548,391.51, 822,281.62 and 169,204.59

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Solution

The fourth proportional to 548,391.51, 822,281.62 and 169,204.59 is: 253,712.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,391.51 : 822,281.62 = 169,204.59 : x
  2. Step 2: Convert to fraction form
    548,391.51/822,281.62 = 169,204.59/x
  3. Step 3: Cross multiply
    548,391.51x = 822,281.62 × 169,204.59
  4. Step 4: Simplify right side
    548,391.51x = 139,133,824,376.64
  5. Step 5: Solve for x
    x = 139,133,824,376.64/548,391.51
  6. Step 6: Final answer
    x = 253,712.58

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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.