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Finding the Fourth Proportional to 339,088.39, 508,607.93 and 136,697.94

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Solution

The fourth proportional to 339,088.39, 508,607.93 and 136,697.94 is: 205,036.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,088.39 : 508,607.93 = 136,697.94 : x
  2. Step 2: Convert to fraction form
    339,088.39/508,607.93 = 136,697.94/x
  3. Step 3: Cross multiply
    339,088.39x = 508,607.93 × 136,697.94
  4. Step 4: Simplify right side
    339,088.39x = 69,525,656,640.41
  5. Step 5: Solve for x
    x = 69,525,656,640.41/339,088.39
  6. Step 6: Final answer
    x = 205,036.97

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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.