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Finding the Fourth Proportional to 253,551.48, 349,918.83 and 140,381.52

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Solution

The fourth proportional to 253,551.48, 349,918.83 and 140,381.52 is: 193,736.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,551.48 : 349,918.83 = 140,381.52 : x
  2. Step 2: Convert to fraction form
    253,551.48/349,918.83 = 140,381.52/x
  3. Step 3: Cross multiply
    253,551.48x = 349,918.83 × 140,381.52
  4. Step 4: Simplify right side
    253,551.48x = 49,122,137,232.02
  5. Step 5: Solve for x
    x = 49,122,137,232.02/253,551.48
  6. Step 6: Final answer
    x = 193,736.35

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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.