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Finding the Fourth Proportional to 242,992.70, 335,328.86 and 135,562.82

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Solution

The fourth proportional to 242,992.70, 335,328.86 and 135,562.82 is: 187,076.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,992.70 : 335,328.86 = 135,562.82 : x
  2. Step 2: Convert to fraction form
    242,992.70/335,328.86 = 135,562.82/x
  3. Step 3: Cross multiply
    242,992.70x = 335,328.86 × 135,562.82
  4. Step 4: Simplify right side
    242,992.70x = 45,458,125,888.99
  5. Step 5: Solve for x
    x = 45,458,125,888.99/242,992.70
  6. Step 6: Final answer
    x = 187,076.10

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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.