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Finding the Fourth Proportional to 98,811.50, 148,217.45 and 46,257.89

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Solution

The fourth proportional to 98,811.50, 148,217.45 and 46,257.89 is: 69,386.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,811.50 : 148,217.45 = 46,257.89 : x
  2. Step 2: Convert to fraction form
    98,811.50/148,217.45 = 46,257.89/x
  3. Step 3: Cross multiply
    98,811.50x = 148,217.45 × 46,257.89
  4. Step 4: Simplify right side
    98,811.50x = 6,856,225,525.80
  5. Step 5: Solve for x
    x = 6,856,225,525.80/98,811.50
  6. Step 6: Final answer
    x = 69,386.92

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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.