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Finding the Fourth Proportional to 90,592.66, 125,021.10 and 50,307.10

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Solution

The fourth proportional to 90,592.66, 125,021.10 and 50,307.10 is: 69,425.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,592.66 : 125,021.10 = 50,307.10 : x
  2. Step 2: Convert to fraction form
    90,592.66/125,021.10 = 50,307.10/x
  3. Step 3: Cross multiply
    90,592.66x = 125,021.10 × 50,307.10
  4. Step 4: Simplify right side
    90,592.66x = 6,289,448,979.81
  5. Step 5: Solve for x
    x = 6,289,448,979.81/90,592.66
  6. Step 6: Final answer
    x = 69,425.59

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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.