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Finding the Fourth Proportional to 128,076.59, 191,857.68 and 63,841.03

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Solution

The fourth proportional to 128,076.59, 191,857.68 and 63,841.03 is: 95,633.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,076.59 : 191,857.68 = 63,841.03 : x
  2. Step 2: Convert to fraction form
    128,076.59/191,857.68 = 63,841.03/x
  3. Step 3: Cross multiply
    128,076.59x = 191,857.68 × 63,841.03
  4. Step 4: Simplify right side
    128,076.59x = 12,248,391,424.97
  5. Step 5: Solve for x
    x = 12,248,391,424.97/128,076.59
  6. Step 6: Final answer
    x = 95,633.33

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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.