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Finding the Fourth Proportional to 76,130.84, 105,060.02 and 43,853.69

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Solution

The fourth proportional to 76,130.84, 105,060.02 and 43,853.69 is: 60,517.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,130.84 : 105,060.02 = 43,853.69 : x
  2. Step 2: Convert to fraction form
    76,130.84/105,060.02 = 43,853.69/x
  3. Step 3: Cross multiply
    76,130.84x = 105,060.02 × 43,853.69
  4. Step 4: Simplify right side
    76,130.84x = 4,607,268,803.91
  5. Step 5: Solve for x
    x = 4,607,268,803.91/76,130.84
  6. Step 6: Final answer
    x = 60,517.78

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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.