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Finding the Fourth Proportional to 151,339.53, 208,849.96 and 83,356.75

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Solution

The fourth proportional to 151,339.53, 208,849.96 and 83,356.75 is: 115,033.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,339.53 : 208,849.96 = 83,356.75 : x
  2. Step 2: Convert to fraction form
    151,339.53/208,849.96 = 83,356.75/x
  3. Step 3: Cross multiply
    151,339.53x = 208,849.96 × 83,356.75
  4. Step 4: Simplify right side
    151,339.53x = 17,409,054,268.49
  5. Step 5: Solve for x
    x = 17,409,054,268.49/151,339.53
  6. Step 6: Final answer
    x = 115,033.09

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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.