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Finding the Fourth Proportional to 76,054.80, 104,955.52 and 45,840.52

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Solution

The fourth proportional to 76,054.80, 104,955.52 and 45,840.52 is: 63,259.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,054.80 : 104,955.52 = 45,840.52 : x
  2. Step 2: Convert to fraction form
    76,054.80/104,955.52 = 45,840.52/x
  3. Step 3: Cross multiply
    76,054.80x = 104,955.52 × 45,840.52
  4. Step 4: Simplify right side
    76,054.80x = 4,811,215,613.67
  5. Step 5: Solve for x
    x = 4,811,215,613.67/76,054.80
  6. Step 6: Final answer
    x = 63,259.85

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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.