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Finding the Fourth Proportional to 251,800.57, 377,700.90 and 83,275.67

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Solution

The fourth proportional to 251,800.57, 377,700.90 and 83,275.67 is: 124,913.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,800.57 : 377,700.90 = 83,275.67 : x
  2. Step 2: Convert to fraction form
    251,800.57/377,700.90 = 83,275.67/x
  3. Step 3: Cross multiply
    251,800.57x = 377,700.90 × 83,275.67
  4. Step 4: Simplify right side
    251,800.57x = 31,453,294,146.47
  5. Step 5: Solve for x
    x = 31,453,294,146.47/251,800.57
  6. Step 6: Final answer
    x = 124,913.51

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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.