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Finding the Fourth Proportional to 92,789.01, 128,045.41 and 50,346.63

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Solution

The fourth proportional to 92,789.01, 128,045.41 and 50,346.63 is: 69,476.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,789.01 : 128,045.41 = 50,346.63 : x
  2. Step 2: Convert to fraction form
    92,789.01/128,045.41 = 50,346.63/x
  3. Step 3: Cross multiply
    92,789.01x = 128,045.41 × 50,346.63
  4. Step 4: Simplify right side
    92,789.01x = 6,446,654,754.60
  5. Step 5: Solve for x
    x = 6,446,654,754.60/92,789.01
  6. Step 6: Final answer
    x = 69,476.49

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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.