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Finding the Fourth Proportional to 456,846.39, 685,425.31 and 137,006.07

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Solution

The fourth proportional to 456,846.39, 685,425.31 and 137,006.07 is: 205,555.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,846.39 : 685,425.31 = 137,006.07 : x
  2. Step 2: Convert to fraction form
    456,846.39/685,425.31 = 137,006.07/x
  3. Step 3: Cross multiply
    456,846.39x = 685,425.31 × 137,006.07
  4. Step 4: Simplify right side
    456,846.39x = 93,907,425,088.77
  5. Step 5: Solve for x
    x = 93,907,425,088.77/456,846.39
  6. Step 6: Final answer
    x = 205,555.80

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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.