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Finding the Fourth Proportional to 208,373.49, 312,578.64 and 58,615.02

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Solution

The fourth proportional to 208,373.49, 312,578.64 and 58,615.02 is: 87,927.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,373.49 : 312,578.64 = 58,615.02 : x
  2. Step 2: Convert to fraction form
    208,373.49/312,578.64 = 58,615.02/x
  3. Step 3: Cross multiply
    208,373.49x = 312,578.64 × 58,615.02
  4. Step 4: Simplify right side
    208,373.49x = 18,321,803,235.17
  5. Step 5: Solve for x
    x = 18,321,803,235.17/208,373.49
  6. Step 6: Final answer
    x = 87,927.71

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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.