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Finding the Fourth Proportional to 453,009.69, 679,518.63 and 137,466.59

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Solution

The fourth proportional to 453,009.69, 679,518.63 and 137,466.59 is: 206,201.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,009.69 : 679,518.63 = 137,466.59 : x
  2. Step 2: Convert to fraction form
    453,009.69/679,518.63 = 137,466.59/x
  3. Step 3: Cross multiply
    453,009.69x = 679,518.63 × 137,466.59
  4. Step 4: Simplify right side
    453,009.69x = 93,411,108,907.57
  5. Step 5: Solve for x
    x = 93,411,108,907.57/453,009.69
  6. Step 6: Final answer
    x = 206,201.13

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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.