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Finding the Fourth Proportional to 125,325.44, 172,951.80 and 68,736.68

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Solution

The fourth proportional to 125,325.44, 172,951.80 and 68,736.68 is: 94,858.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,325.44 : 172,951.80 = 68,736.68 : x
  2. Step 2: Convert to fraction form
    125,325.44/172,951.80 = 68,736.68/x
  3. Step 3: Cross multiply
    125,325.44x = 172,951.80 × 68,736.68
  4. Step 4: Simplify right side
    125,325.44x = 11,888,132,532.02
  5. Step 5: Solve for x
    x = 11,888,132,532.02/125,325.44
  6. Step 6: Final answer
    x = 94,858.10

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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.