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Finding the Fourth Proportional to 208,093.61, 312,133.12 and 58,332.71

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Solution

The fourth proportional to 208,093.61, 312,133.12 and 58,332.71 is: 87,497.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,093.61 : 312,133.12 = 58,332.71 : x
  2. Step 2: Convert to fraction form
    208,093.61/312,133.12 = 58,332.71/x
  3. Step 3: Cross multiply
    208,093.61x = 312,133.12 × 58,332.71
  4. Step 4: Simplify right side
    208,093.61x = 18,207,569,063.86
  5. Step 5: Solve for x
    x = 18,207,569,063.86/208,093.61
  6. Step 6: Final answer
    x = 87,497.01

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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.