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Finding the Fourth Proportional to 147,777.25, 203,933.90 and 84,119.14

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Solution

The fourth proportional to 147,777.25, 203,933.90 and 84,119.14 is: 116,085.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,777.25 : 203,933.90 = 84,119.14 : x
  2. Step 2: Convert to fraction form
    147,777.25/203,933.90 = 84,119.14/x
  3. Step 3: Cross multiply
    147,777.25x = 203,933.90 × 84,119.14
  4. Step 4: Simplify right side
    147,777.25x = 17,154,744,284.85
  5. Step 5: Solve for x
    x = 17,154,744,284.85/147,777.25
  6. Step 6: Final answer
    x = 116,085.15

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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.