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Finding the Fourth Proportional to 348,389.76, 522,672.38 and 99,071.76

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Solution

The fourth proportional to 348,389.76, 522,672.38 and 99,071.76 is: 148,632.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,389.76 : 522,672.38 = 99,071.76 : x
  2. Step 2: Convert to fraction form
    348,389.76/522,672.38 = 99,071.76/x
  3. Step 3: Cross multiply
    348,389.76x = 522,672.38 × 99,071.76
  4. Step 4: Simplify right side
    348,389.76x = 51,782,072,589.99
  5. Step 5: Solve for x
    x = 51,782,072,589.99/348,389.76
  6. Step 6: Final answer
    x = 148,632.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.