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Finding the Fourth Proportional to 68,793.90, 103,190.85 and 62,670.30

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Solution

The fourth proportional to 68,793.90, 103,190.85 and 62,670.30 is: 94,005.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,793.90 : 103,190.85 = 62,670.30 : x
  2. Step 2: Convert to fraction form
    68,793.90/103,190.85 = 62,670.30/x
  3. Step 3: Cross multiply
    68,793.90x = 103,190.85 × 62,670.30
  4. Step 4: Simplify right side
    68,793.90x = 6,467,001,526.76
  5. Step 5: Solve for x
    x = 6,467,001,526.76/68,793.90
  6. Step 6: Final answer
    x = 94,005.45

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1.5x scale

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.