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Finding the Fourth Proportional to 102,915.70, 154,385.55 and 32,802.10

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Solution

The fourth proportional to 102,915.70, 154,385.55 and 32,802.10 is: 49,206.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,915.70 : 154,385.55 = 32,802.10 : x
  2. Step 2: Convert to fraction form
    102,915.70/154,385.55 = 32,802.10/x
  3. Step 3: Cross multiply
    102,915.70x = 154,385.55 × 32,802.10
  4. Step 4: Simplify right side
    102,915.70x = 5,064,170,249.66
  5. Step 5: Solve for x
    x = 5,064,170,249.66/102,915.70
  6. Step 6: Final answer
    x = 49,206.97

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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.