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Finding the Fourth Proportional to 104,991.56, 157,486.70 and 38,436.32

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Solution

The fourth proportional to 104,991.56, 157,486.70 and 38,436.32 is: 57,654.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,991.56 : 157,486.70 = 38,436.32 : x
  2. Step 2: Convert to fraction form
    104,991.56/157,486.70 = 38,436.32/x
  3. Step 3: Cross multiply
    104,991.56x = 157,486.70 × 38,436.32
  4. Step 4: Simplify right side
    104,991.56x = 6,053,209,196.94
  5. Step 5: Solve for x
    x = 6,053,209,196.94/104,991.56
  6. Step 6: Final answer
    x = 57,654.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.