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Finding the Fourth Proportional to 242,907.60, 335,212.94 and 135,484.56

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Solution

The fourth proportional to 242,907.60, 335,212.94 and 135,484.56 is: 186,968.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,907.60 : 335,212.94 = 135,484.56 : x
  2. Step 2: Convert to fraction form
    242,907.60/335,212.94 = 135,484.56/x
  3. Step 3: Cross multiply
    242,907.60x = 335,212.94 × 135,484.56
  4. Step 4: Simplify right side
    242,907.60x = 45,416,177,682.21
  5. Step 5: Solve for x
    x = 45,416,177,682.21/242,907.60
  6. Step 6: Final answer
    x = 186,968.94

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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.