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Finding the Fourth Proportional to 172,963.73, 259,424.12 and 46,613.86

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Solution

The fourth proportional to 172,963.73, 259,424.12 and 46,613.86 is: 69,915.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,963.73 : 259,424.12 = 46,613.86 : x
  2. Step 2: Convert to fraction form
    172,963.73/259,424.12 = 46,613.86/x
  3. Step 3: Cross multiply
    172,963.73x = 259,424.12 × 46,613.86
  4. Step 4: Simplify right side
    172,963.73x = 12,092,759,078.28
  5. Step 5: Solve for x
    x = 12,092,759,078.28/172,963.73
  6. Step 6: Final answer
    x = 69,915.00

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1.5x scale

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.