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Finding the Fourth Proportional to 253,107.11, 349,293.31 and 151,113.56

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Solution

The fourth proportional to 253,107.11, 349,293.31 and 151,113.56 is: 208,539.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,107.11 : 349,293.31 = 151,113.56 : x
  2. Step 2: Convert to fraction form
    253,107.11/349,293.31 = 151,113.56/x
  3. Step 3: Cross multiply
    253,107.11x = 349,293.31 × 151,113.56
  4. Step 4: Simplify right side
    253,107.11x = 52,782,953,434.03
  5. Step 5: Solve for x
    x = 52,782,953,434.03/253,107.11
  6. Step 6: Final answer
    x = 208,539.98

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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.