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Finding the Fourth Proportional to 557,113.17, 835,661.54 and 136,389.05

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Solution

The fourth proportional to 557,113.17, 835,661.54 and 136,389.05 is: 204,581.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,113.17 : 835,661.54 = 136,389.05 : x
  2. Step 2: Convert to fraction form
    557,113.17/835,661.54 = 136,389.05/x
  3. Step 3: Cross multiply
    557,113.17x = 835,661.54 × 136,389.05
  4. Step 4: Simplify right side
    557,113.17x = 113,975,078,701.88
  5. Step 5: Solve for x
    x = 113,975,078,701.88/557,113.17
  6. Step 6: Final answer
    x = 204,581.56

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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.