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Finding the Fourth Proportional to 115,166.68, 172,650.67 and 46,787.08

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Solution

The fourth proportional to 115,166.68, 172,650.67 and 46,787.08 is: 70,140.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,166.68 : 172,650.67 = 46,787.08 : x
  2. Step 2: Convert to fraction form
    115,166.68/172,650.67 = 46,787.08/x
  3. Step 3: Cross multiply
    115,166.68x = 172,650.67 × 46,787.08
  4. Step 4: Simplify right side
    115,166.68x = 8,077,820,709.34
  5. Step 5: Solve for x
    x = 8,077,820,709.34/115,166.68
  6. Step 6: Final answer
    x = 70,140.26

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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.