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Finding the Fourth Proportional to 125,334.62, 172,952.79 and 68,736.86

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Solution

The fourth proportional to 125,334.62, 172,952.79 and 68,736.86 is: 94,851.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,334.62 : 172,952.79 = 68,736.86 : x
  2. Step 2: Convert to fraction form
    125,334.62/172,952.79 = 68,736.86/x
  3. Step 3: Cross multiply
    125,334.62x = 172,952.79 × 68,736.86
  4. Step 4: Simplify right side
    125,334.62x = 11,888,231,712.84
  5. Step 5: Solve for x
    x = 11,888,231,712.84/125,334.62
  6. Step 6: Final answer
    x = 94,851.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.