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Finding the Fourth Proportional to 555,979.76, 833,969.64 and 135,252

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Solution

The fourth proportional to 555,979.76, 833,969.64 and 135,252 is: 202,878

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,979.76 : 833,969.64 = 135,252 : x
  2. Step 2: Convert to fraction form
    555,979.76/833,969.64 = 135,252/x
  3. Step 3: Cross multiply
    555,979.76x = 833,969.64 × 135,252
  4. Step 4: Simplify right side
    555,979.76x = 112,796,061,749.28
  5. Step 5: Solve for x
    x = 112,796,061,749.28/555,979.76
  6. Step 6: Final answer
    x = 202,878

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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.