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Finding the Fourth Proportional to 98,798.67, 148,225.76 and 39,675.86

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Solution

The fourth proportional to 98,798.67, 148,225.76 and 39,675.86 is: 59,524.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,798.67 : 148,225.76 = 39,675.86 : x
  2. Step 2: Convert to fraction form
    98,798.67/148,225.76 = 39,675.86/x
  3. Step 3: Cross multiply
    98,798.67x = 148,225.76 × 39,675.86
  4. Step 4: Simplify right side
    98,798.67x = 5,880,983,562.65
  5. Step 5: Solve for x
    x = 5,880,983,562.65/98,798.67
  6. Step 6: Final answer
    x = 59,524.93

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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.