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Finding the Fourth Proportional to 149,648.93, 224,552.21 and 86,513.39

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Solution

The fourth proportional to 149,648.93, 224,552.21 and 86,513.39 is: 129,815.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,648.93 : 224,552.21 = 86,513.39 : x
  2. Step 2: Convert to fraction form
    149,648.93/224,552.21 = 86,513.39/x
  3. Step 3: Cross multiply
    149,648.93x = 224,552.21 × 86,513.39
  4. Step 4: Simplify right side
    149,648.93x = 19,426,772,935.79
  5. Step 5: Solve for x
    x = 19,426,772,935.79/149,648.93
  6. Step 6: Final answer
    x = 129,815.65

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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.