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Finding the Fourth Proportional to 339,607.69, 468,669.16 and 186,643.10

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Solution

The fourth proportional to 339,607.69, 468,669.16 and 186,643.10 is: 257,573.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,607.69 : 468,669.16 = 186,643.10 : x
  2. Step 2: Convert to fraction form
    339,607.69/468,669.16 = 186,643.10/x
  3. Step 3: Cross multiply
    339,607.69x = 468,669.16 × 186,643.10
  4. Step 4: Simplify right side
    339,607.69x = 87,473,863,963.58
  5. Step 5: Solve for x
    x = 87,473,863,963.58/339,607.69
  6. Step 6: Final answer
    x = 257,573.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.