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Finding the Fourth Proportional to 125,326.92, 172,950.76 and 68,738.16

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Solution

The fourth proportional to 125,326.92, 172,950.76 and 68,738.16 is: 94,858.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,326.92 : 172,950.76 = 68,738.16 : x
  2. Step 2: Convert to fraction form
    125,326.92/172,950.76 = 68,738.16/x
  3. Step 3: Cross multiply
    125,326.92x = 172,950.76 × 68,738.16
  4. Step 4: Simplify right side
    125,326.92x = 11,888,317,013.00
  5. Step 5: Solve for x
    x = 11,888,317,013.00/125,326.92
  6. Step 6: Final answer
    x = 94,858.45

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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.