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Finding the Fourth Proportional to 98,801.67, 148,230.26 and 39,678.86

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Solution

The fourth proportional to 98,801.67, 148,230.26 and 39,678.86 is: 59,529.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,801.67 : 148,230.26 = 39,678.86 : x
  2. Step 2: Convert to fraction form
    98,801.67/148,230.26 = 39,678.86/x
  3. Step 3: Cross multiply
    98,801.67x = 148,230.26 × 39,678.86
  4. Step 4: Simplify right side
    98,801.67x = 5,881,607,734.30
  5. Step 5: Solve for x
    x = 5,881,607,734.30/98,801.67
  6. Step 6: Final answer
    x = 59,529.44

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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.