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Finding the Fourth Proportional to 235,564.88, 352,455.64 and 139,553.64

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Solution

The fourth proportional to 235,564.88, 352,455.64 and 139,553.64 is: 208,802.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,564.88 : 352,455.64 = 139,553.64 : x
  2. Step 2: Convert to fraction form
    235,564.88/352,455.64 = 139,553.64/x
  3. Step 3: Cross multiply
    235,564.88x = 352,455.64 × 139,553.64
  4. Step 4: Simplify right side
    235,564.88x = 49,186,466,675.59
  5. Step 5: Solve for x
    x = 49,186,466,675.59/235,564.88
  6. Step 6: Final answer
    x = 208,802.21

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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.