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Finding the Fourth Proportional to 151,191.01, 208,656.57 and 83,221.48

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Solution

The fourth proportional to 151,191.01, 208,656.57 and 83,221.48 is: 114,852.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,191.01 : 208,656.57 = 83,221.48 : x
  2. Step 2: Convert to fraction form
    151,191.01/208,656.57 = 83,221.48/x
  3. Step 3: Cross multiply
    151,191.01x = 208,656.57 × 83,221.48
  4. Step 4: Simplify right side
    151,191.01x = 17,364,708,567.12
  5. Step 5: Solve for x
    x = 17,364,708,567.12/151,191.01
  6. Step 6: Final answer
    x = 114,852.79

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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.