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Finding the Fourth Proportional to 76,393.32, 105,422.74 and 44,556.06

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Solution

The fourth proportional to 76,393.32, 105,422.74 and 44,556.06 is: 61,487.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,393.32 : 105,422.74 = 44,556.06 : x
  2. Step 2: Convert to fraction form
    76,393.32/105,422.74 = 44,556.06/x
  3. Step 3: Cross multiply
    76,393.32x = 105,422.74 × 44,556.06
  4. Step 4: Simplify right side
    76,393.32x = 4,697,221,928.80
  5. Step 5: Solve for x
    x = 4,697,221,928.80/76,393.32
  6. Step 6: Final answer
    x = 61,487.34

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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.