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Finding the Fourth Proportional to 94,142.81, 129,912.36 and 53,300.58

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Solution

The fourth proportional to 94,142.81, 129,912.36 and 53,300.58 is: 73,552.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,142.81 : 129,912.36 = 53,300.58 : x
  2. Step 2: Convert to fraction form
    94,142.81/129,912.36 = 53,300.58/x
  3. Step 3: Cross multiply
    94,142.81x = 129,912.36 × 53,300.58
  4. Step 4: Simplify right side
    94,142.81x = 6,924,404,137.17
  5. Step 5: Solve for x
    x = 6,924,404,137.17/94,142.81
  6. Step 6: Final answer
    x = 73,552.13

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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.