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Finding the Fourth Proportional to 160,913.10, 241,484.85 and 90,717.90

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Solution

The fourth proportional to 160,913.10, 241,484.85 and 90,717.90 is: 136,141.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,913.10 : 241,484.85 = 90,717.90 : x
  2. Step 2: Convert to fraction form
    160,913.10/241,484.85 = 90,717.90/x
  3. Step 3: Cross multiply
    160,913.10x = 241,484.85 × 90,717.90
  4. Step 4: Simplify right side
    160,913.10x = 21,906,998,473.82
  5. Step 5: Solve for x
    x = 21,906,998,473.82/160,913.10
  6. Step 6: Final answer
    x = 136,141.80

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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.