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Finding the Fourth Proportional to 273,976.77, 378,086.65 and 153,117.93

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Solution

The fourth proportional to 273,976.77, 378,086.65 and 153,117.93 is: 211,302.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,976.77 : 378,086.65 = 153,117.93 : x
  2. Step 2: Convert to fraction form
    273,976.77/378,086.65 = 153,117.93/x
  3. Step 3: Cross multiply
    273,976.77x = 378,086.65 × 153,117.93
  4. Step 4: Simplify right side
    273,976.77x = 57,891,845,208.63
  5. Step 5: Solve for x
    x = 57,891,845,208.63/273,976.77
  6. Step 6: Final answer
    x = 211,302.02

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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.