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Finding the Fourth Proportional to 273,970.71, 378,080.96 and 153,114.03

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Solution

The fourth proportional to 273,970.71, 378,080.96 and 153,114.03 is: 211,298.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,970.71 : 378,080.96 = 153,114.03 : x
  2. Step 2: Convert to fraction form
    273,970.71/378,080.96 = 153,114.03/x
  3. Step 3: Cross multiply
    273,970.71x = 378,080.96 × 153,114.03
  4. Step 4: Simplify right side
    273,970.71x = 57,889,498,686.30
  5. Step 5: Solve for x
    x = 57,889,498,686.30/273,970.71
  6. Step 6: Final answer
    x = 211,298.13

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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.