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Finding the Fourth Proportional to 466,187.60, 643,173 and 275,105.36

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Solution

The fourth proportional to 466,187.60, 643,173 and 275,105.36 is: 379,547.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,187.60 : 643,173 = 275,105.36 : x
  2. Step 2: Convert to fraction form
    466,187.60/643,173 = 275,105.36/x
  3. Step 3: Cross multiply
    466,187.60x = 643,173 × 275,105.36
  4. Step 4: Simplify right side
    466,187.60x = 176,940,339,707.28
  5. Step 5: Solve for x
    x = 176,940,339,707.28/466,187.60
  6. Step 6: Final answer
    x = 379,547.50

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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.