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Finding the Fourth Proportional to 275,445.72, 379,973.43 and 183,722.94

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Solution

The fourth proportional to 275,445.72, 379,973.43 and 183,722.94 is: 253,443.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,445.72 : 379,973.43 = 183,722.94 : x
  2. Step 2: Convert to fraction form
    275,445.72/379,973.43 = 183,722.94/x
  3. Step 3: Cross multiply
    275,445.72x = 379,973.43 × 183,722.94
  4. Step 4: Simplify right side
    275,445.72x = 69,809,835,681.48
  5. Step 5: Solve for x
    x = 69,809,835,681.48/275,445.72
  6. Step 6: Final answer
    x = 253,443.17

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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.