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Finding the Fourth Proportional to 172,959.42, 259,417.67 and 46,609.55

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Solution

The fourth proportional to 172,959.42, 259,417.67 and 46,609.55 is: 69,908.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,959.42 : 259,417.67 = 46,609.55 : x
  2. Step 2: Convert to fraction form
    172,959.42/259,417.67 = 46,609.55/x
  3. Step 3: Cross multiply
    172,959.42x = 259,417.67 × 46,609.55
  4. Step 4: Simplify right side
    172,959.42x = 12,091,339,330.61
  5. Step 5: Solve for x
    x = 12,091,339,330.61/172,959.42
  6. Step 6: Final answer
    x = 69,908.53

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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.