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Finding the Fourth Proportional to 140,528.52, 193,924.80 and 76,866.84

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Solution

The fourth proportional to 140,528.52, 193,924.80 and 76,866.84 is: 106,073.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,528.52 : 193,924.80 = 76,866.84 : x
  2. Step 2: Convert to fraction form
    140,528.52/193,924.80 = 76,866.84/x
  3. Step 3: Cross multiply
    140,528.52x = 193,924.80 × 76,866.84
  4. Step 4: Simplify right side
    140,528.52x = 14,906,386,573.63
  5. Step 5: Solve for x
    x = 14,906,386,573.63/140,528.52
  6. Step 6: Final answer
    x = 106,073.75

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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.