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Finding the Fourth Proportional to 151,354.89, 208,871.19 and 83,372.18

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Solution

The fourth proportional to 151,354.89, 208,871.19 and 83,372.18 is: 115,054.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,354.89 : 208,871.19 = 83,372.18 : x
  2. Step 2: Convert to fraction form
    151,354.89/208,871.19 = 83,372.18/x
  3. Step 3: Cross multiply
    151,354.89x = 208,871.19 × 83,372.18
  4. Step 4: Simplify right side
    151,354.89x = 17,414,045,405.14
  5. Step 5: Solve for x
    x = 17,414,045,405.14/151,354.89
  6. Step 6: Final answer
    x = 115,054.40

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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.