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Finding the Fourth Proportional to 99,511.84, 148,917.18 and 62,089.54

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Solution

The fourth proportional to 99,511.84, 148,917.18 and 62,089.54 is: 92,915.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,511.84 : 148,917.18 = 62,089.54 : x
  2. Step 2: Convert to fraction form
    99,511.84/148,917.18 = 62,089.54/x
  3. Step 3: Cross multiply
    99,511.84x = 148,917.18 × 62,089.54
  4. Step 4: Simplify right side
    99,511.84x = 9,246,199,064.84
  5. Step 5: Solve for x
    x = 9,246,199,064.84/99,511.84
  6. Step 6: Final answer
    x = 92,915.57

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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.