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Finding the Fourth Proportional to 109,449.90, 151,040.88 and 59,148.90

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Solution

The fourth proportional to 109,449.90, 151,040.88 and 59,148.90 is: 81,625.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,449.90 : 151,040.88 = 59,148.90 : x
  2. Step 2: Convert to fraction form
    109,449.90/151,040.88 = 59,148.90/x
  3. Step 3: Cross multiply
    109,449.90x = 151,040.88 × 59,148.90
  4. Step 4: Simplify right side
    109,449.90x = 8,933,901,907.03
  5. Step 5: Solve for x
    x = 8,933,901,907.03/109,449.90
  6. Step 6: Final answer
    x = 81,625.49

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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.