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Finding the Fourth Proportional to 94,770.81, 130,791.42 and 54,497.61

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Solution

The fourth proportional to 94,770.81, 130,791.42 and 54,497.61 is: 75,211.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,770.81 : 130,791.42 = 54,497.61 : x
  2. Step 2: Convert to fraction form
    94,770.81/130,791.42 = 54,497.61/x
  3. Step 3: Cross multiply
    94,770.81x = 130,791.42 × 54,497.61
  4. Step 4: Simplify right side
    94,770.81x = 7,127,819,798.51
  5. Step 5: Solve for x
    x = 7,127,819,798.51/94,770.81
  6. Step 6: Final answer
    x = 75,211.13

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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.