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Finding the Fourth Proportional to 172,916.94, 259,353.54 and 46,567.28

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Solution

The fourth proportional to 172,916.94, 259,353.54 and 46,567.28 is: 69,845.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,916.94 : 259,353.54 = 46,567.28 : x
  2. Step 2: Convert to fraction form
    172,916.94/259,353.54 = 46,567.28/x
  3. Step 3: Cross multiply
    172,916.94x = 259,353.54 × 46,567.28
  4. Step 4: Simplify right side
    172,916.94x = 12,077,388,916.17
  5. Step 5: Solve for x
    x = 12,077,388,916.17/172,916.94
  6. Step 6: Final answer
    x = 69,845.03

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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.