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Finding the Fourth Proportional to 105,548.88, 158,310.26 and 38,987.54

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Solution

The fourth proportional to 105,548.88, 158,310.26 and 38,987.54 is: 58,476.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,548.88 : 158,310.26 = 38,987.54 : x
  2. Step 2: Convert to fraction form
    105,548.88/158,310.26 = 38,987.54/x
  3. Step 3: Cross multiply
    105,548.88x = 158,310.26 × 38,987.54
  4. Step 4: Simplify right side
    105,548.88x = 6,172,127,594.16
  5. Step 5: Solve for x
    x = 6,172,127,594.16/105,548.88
  6. Step 6: Final answer
    x = 58,476.49

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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.