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Finding the Fourth Proportional to 248,878.70, 373,319.40 and 61,890.20

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Solution

The fourth proportional to 248,878.70, 373,319.40 and 61,890.20 is: 92,835.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,878.70 : 373,319.40 = 61,890.20 : x
  2. Step 2: Convert to fraction form
    248,878.70/373,319.40 = 61,890.20/x
  3. Step 3: Cross multiply
    248,878.70x = 373,319.40 × 61,890.20
  4. Step 4: Simplify right side
    248,878.70x = 23,104,812,329.88
  5. Step 5: Solve for x
    x = 23,104,812,329.88/248,878.70
  6. Step 6: Final answer
    x = 92,835.64

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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.