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Finding the Fourth Proportional to 76,054.44, 104,955.36 and 42,520.44

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Solution

The fourth proportional to 76,054.44, 104,955.36 and 42,520.44 is: 58,678.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,054.44 : 104,955.36 = 42,520.44 : x
  2. Step 2: Convert to fraction form
    76,054.44/104,955.36 = 42,520.44/x
  3. Step 3: Cross multiply
    76,054.44x = 104,955.36 × 42,520.44
  4. Step 4: Simplify right side
    76,054.44x = 4,462,748,087.56
  5. Step 5: Solve for x
    x = 4,462,748,087.56/76,054.44
  6. Step 6: Final answer
    x = 58,678.34

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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.